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3Com 3CP5610A - U.S. Robotics 56K V90 PCI Performance Pro Faxmodem Dos/NT/Linux User Manual

Manual is about: U.S. Robotics 56K V90 PCI Performance Pro Faxmodem Dos/NT/Linux

Summary of 3CP5610A - U.S. Robotics 56K V90 PCI Performance Pro Faxmodem Dos/NT/Linux

  • Page 1

    Http://www.Usr.Com/ u.S. Robotics ® modems: user’s guide published september 2000

  • Page 2

    U.S. Robotics corporation 3800 golf rd. Rolling meadows, il 60008 copyright © 2000 u.S. Robotics corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) with...

  • Page 3: Ontents

    C ontents 1 56k f ax modem p roduct f eatures modulation schemes 1 error control and data compression schemes 2 fax modulation schemes 2 front channel link rates (download) (v.90/v.92) 2 back channel link rates (upload) (v.92) 2 back channel link rates (upload) (v.90) 2 v.34+ link rates 2 v.32bis li...

  • Page 4

    Uninstalling an external faxmodem 9 uninstalling a macintosh faxmodem 9 4 t roubleshooting and h elp r esources external serial modems 11 basic troubleshooting steps 11 my computer isn't recognizing my modem. 12 my software isn't recognizing my modem. 14 my modem won't dial out or doesn't answer inc...

  • Page 5

    Basic troubleshooting steps 30 my computer isn’t recognizing my modem. 30 my software isn’t recognizing my modem. 31 my modem won’t dial out or doesn’t answer incoming calls. 33 office users 33 voice mail users 33 my modem sounds like it’s trying to connect to another modem but fails. 33 my modem is...

  • Page 6

    In canada: 49 5 g lossary 6 t echnical r eference front-of-the-case lights (external serial faxmodems) 63 top-of-the-case lights (voice faxmodem pro externals) 64 typing commands 64 basic data commands 64 extended data commands 71 s registers 80 bit-mapped registers 84 7 r egulatory i nformation man...

  • Page 7: 56K F

    1 56k f axmodem p roduct f eatures modulation schemes itu-t v.92 s itu-t v.90* x2 tm technology* itu-t v.34+ itu-t v.34 itu-t v.32bis itu-t v.32 itu-t v.22bis itu-t v.22 itu-t v.23 bell 212a itu-t v.21 bell 103 * models 5686, 5687, 5609, 5610, 5605, 5613 only s on select models.

  • Page 8

    2 c hapter 1: 56k f axm odem p rodu ct f ea tures error control and data compression schemes itu-t v.42 itu-t v.42bis mnp 2-5 fax modulation schemes itu-t v.17 itu-t v.29 itu-t v.27ter itu-t v.21 fax standards eia 578 class 1 fax eia 592 class 2.0 fax front channel link rates (download) (v.90/v.92) ...

  • Page 9

    V.32bis link rates 3 v.32bis link rates 4800, 7200, 9600, 12000, 14400 additional link rates 300, 1200/75 (v.23), 1200, 2400 fax link rates 2400, 4800, 7200, 9600, 12000, 14400 dte rates 300, 1200, 2400, 9600, 19200, 38400, 57600, 115200

  • Page 10

    4 c hapter 1: 56k f axm odem p rodu ct f ea tures.

  • Page 11: Nternal

    2 i nternal and e xternal m odems with s peakerphone making a speakerphone call with a telephone external modems with speakerphone 1 make sure your telephone is plugged into the modem's phone jack. 2 lift the telephone's handset. 3 dial the phone number. 4 when the person on the other end answers, p...

  • Page 12

    6 c hapter 2: i n ter nal an d e xtern al m od em s with s pea ker phone if you do not hear your phone ring, you may not have the telephone's cord plugged into the modem's phone jack. If you are using your communications software to dial speakerphone calls, the software needs to be running in order ...

  • Page 13: Ninstalling

    3 u ninstalling a u.S. R obotics ® m odem note: these instructions only apply to current u.S. Robotics modems. If the modem you'll be uninstalling was made by another manufacturer, refer to that modem's documentation for instructions. This chapter covers the uninstallation of: ■ a u.S. Robotics winm...

  • Page 14

    8 c hapter 3: u nin sta llin g a u.S. R obotic s ® m od em 8 shut down windows and turn off your computer. 9 remove the phone cords from the modem's telco and phone jacks. If the modem is a voice modem, remove any microphones or powered speakers attached to the modem. Caution: to avoid the risk of e...

  • Page 15

    Uninstalling an external faxmodem 9 9 remove the screw that attaches the modem's metal bracket to the computer. 10 remove the modem from its slot. 11 replace the computer's cover. Your modem has now been completely uninstalled. Uninstalling an external faxmodem 1. First remove the modem from the win...

  • Page 16

    10 c hapter 3: u nin sta llin g a u.S. R obotic s ® m od em.

  • Page 17: Roubleshooting

    4 t roubleshooting and h elp r esources this chapter covers: ■ external serial modems ■ external usb modems ■ macintosh modems ■ internal winmodem ® modems ■ internal isa modems ■ internal pci modems ■ help resources ■ are you still having problems? ■ if you need to return the modem to u.S. Robotics...

  • Page 18

    12 c hapter 4: t roub leshooting a nd h elp r esou rces with this modem. Depending on whether you have a 9-pin or 25-pin serial port on your computer, you will need either a db9/db25 or a db25/db25 serial cable. See the diagrams below. You need a db9f/db25m rs-232 serial cable. You need a db25f/db25...

  • Page 19

    External serial modems 13 tab. Look for another modem already in the machine. If there is another modem listed, check which com port it is using. If a previous modem is already using the available com port, you can either use another com port or uninstall the previously installed modem. See your pre...

  • Page 20

    14 c hapter 4: t roub leshooting a nd h elp r esou rces windows nt click windows start, settings, and then control panel. Double-click ports. Make sure the port you are plugging the modem into appears in the list. If it does not, the port needs to be added, and possibly enabled in the bios. Consult ...

  • Page 21

    External serial modems 15 your modem is not properly installed. Try reinstalling your modem using the instructions on the installation guide. Windows 95/98/nt you may not have the correct modem type selected in your software or in windows. Click on windows start, settings, and control panel. When co...

  • Page 22

    16 c hapter 4: t roub leshooting a nd h elp r esou rces possible solution: you might have a bad phone cord connection to your modem, or your phone cord may be plugged into the wrong jack. The phone cord should be plugged into the jack labelled on the modem and into the wall phone jack. Use the phone...

  • Page 23

    External serial modems 17 my modem isn't achieving a 56k internet connection. Possible solution: our research has shown that the vast majority of telephone lines in north america can and do support v.90/v.92 connections. The v.90/v.92 protocol allows for connection speeds of up to 56k, but line cond...

  • Page 24

    18 c hapter 4: t roub leshooting a nd h elp r esou rces 4. For a v.92 connection, your modem must be connecting to a v.92 server. A pair of 56k modems will not connect to each other at v.92/56k speeds. Note: current ic/fcc regulations limiting power may limit maximum download speeds to 53,333 bps. E...

  • Page 25

    External usb modems 19 you need a db25f/db25m rs-232 serial cable. Usb a to b cable note: you should not attempt to connect or use your modem with both the usb and serial cable connected at the same time. Your modem may fail to respond. If this occurs, you must power down your computer, disconnect t...

  • Page 26

    20 c hapter 4: t roub leshooting a nd h elp r esou rces such as a null modem cable, that will not work correctly with this modem. If you are using this modem as a usb device possible solution: your usb port may not be enabled. To ensure usb is enabled on your system, click windows start. Then click ...

  • Page 27

    External usb modems 21 possible solution: if the modem has worked previously and you removed the usb cable from the computer and then reattached it, try another usb port. It may have been set up originally on the other usb port. You should notice some minimal activity from your computer such as hard...

  • Page 28

    22 c hapter 4: t roub leshooting a nd h elp r esou rces com ports have yellow exclamation points or red xs over them, your com ports may be configured incorrectly or are disabled. If this is the case, you may need to contact your computer manufacturer. Windows nt click windows start, settings, and t...

  • Page 29

    External usb modems 23 your modem is not properly installed. Try reinstalling your modem using the instructions on the installation guide. Windows 95/98/nt you may not have the correct modem type selected in your software or in windows. Click on windows start, settings, and control panel. When contr...

  • Page 30

    24 c hapter 4: t roub leshooting a nd h elp r esou rces be plugged into the jack labelled on the modem and into the wall phone jack. Use the phone cord included in your modem's box if possible. Possible solution: you may have devices between the modem and the phone jack. There should be no line spli...

  • Page 31

    Macintosh modems 25 configurations, some users will not be able to take full advantage of v.90 technology at this time. In order to achieve a v.90 connection, the following must occur: 1 the server you're dialing in to must support and provide a digital v.90 signal. Your isp can provide you with a l...

  • Page 32

    26 c hapter 4: t roub leshooting a nd h elp r esou rces panel will be on. If they are not, check your outlet with another electrical device to be sure you are getting power. 3. If there are dip switches on the back of your modem, are they set correctly? Dip switches 1, 3, 5, and 8 should be in the d...

  • Page 33

    Macintosh modems 27 modem. Make sure it is connected to the modem port on the back of your computer and not the printer port. My software isn't recognizing my modem. Possible solution: your communications software may not function properly if you have more than one version of the software installed,...

  • Page 34

    28 c hapter 4: t roub leshooting a nd h elp r esou rces phone jack. Use the phone cord included in your modem's box if possible. Possible solution: you may have devices between the modem and the phone jack. There should be no line splitters, fax machines, or other devices between the modem and the w...

  • Page 35

    Macintosh modems 29 my modem isn’t achieving a 56k internet connection. Possible solution: note: u.S. Robotics 56k modems are capable of receiving downloads at up to 56 kbps and sending at 31.2 kbps. Actual download speeds you experience may be lower due to varying line conditions. Maximum download ...

  • Page 36

    30 c hapter 4: t roub leshooting a nd h elp r esou rces internal winmodem ® modems (model numbers 3cp5699a, 3cpxx5699a, 3cp5695, 3cpxx5695, and 3cpxx2884a) basic troubleshooting steps 1. Make sure that your phone cord is properly connected. Remove the phone cord from the modem and wall jacks. Reinse...

  • Page 37

    Internal winmodem® modems 31 manager button. Look under ports (com & lpt). If the com ports have yellow exclamation points or red xs over them, your com ports may be configured incorrectly. If this is the case, you may need to contact your computer manufacturer. Possible solution: windows 95 or 98 y...

  • Page 38

    32 c hapter 4: t roub leshooting a nd h elp r esou rces on your system. We highly recommend using the communications software provided with your modem either on the installation cd-rom or the connections tm cd-rom. Possible solution: check in your software manual or with the software manufacturer to...

  • Page 39

    Internal winmodem® modems 33 try reinstalling your modem using the instructions on the installation guide. My modem won’t dial out or doesn’t answer incoming calls. For both dialing and answering problems possible solution: you may have a bad phone cord connection to your modem, or your phone cord m...

  • Page 40

    34 c hapter 4: t roub leshooting a nd h elp r esou rces my modem isn’t achieving a 56k internet connection. Possible solution: note: u.S. Robotics 56k modems are capable of receiving downloads at up to 56 kbps and sending at 31.2 kbps. Actual download speeds you experience may be lower due to varyin...

  • Page 41

    Internal isa modems 35 internal isa modems basic troubleshooting steps 1. Make sure that your phone cord is properly connected. Remove the phone cord from the modem and wall jacks. Reinsert the cord securely in the wall jack and the modem’s jack labelled . Use the phone cord included with your modem...

  • Page 42

    36 c hapter 4: t roub leshooting a nd h elp r esou rces if windows still fails to recognize your modem and it does not have a yellow exclamation point next to its irq, or if your modem doesn’t appear in the list, another problem exists, and you may need to call 3com technical support. Windows 95/98 ...

  • Page 43

    Internal isa modems 37 possible solution: you may be using a com port address that is either already in use or not configured correctly. To work properly, this modem needs to be assigned to a free com port. Windows 2000 make sure your com port is not already in use by another modem. Click windows st...

  • Page 44

    38 c hapter 4: t roub leshooting a nd h elp r esou rces my software isn’t recognizing my modem. Possible solution: your communications software may not function properly if you have more than one version of the software installed, you are using an older version, or you have more than one communicati...

  • Page 45

    Internal isa modems 39 possible solution: windows 2000 if you are using dial-up networking, it may not be configured correctly. Check your configuration and make sure you have the correct port selected. Click start, point to settings and click network and dial-up connections. Make sure that the desc...

  • Page 46

    40 c hapter 4: t roub leshooting a nd h elp r esou rces voice mail users possible solution: if you have voice mail provided by your local phone company, your dial tone may be altered when messages are waiting. Retrieve your voice mail to restore your normal dial tone. My modem sounds like it's tryin...

  • Page 47

    Internal pci modems 41 should try making your 56k connection several times. One way to test this is to dial into a long distance location. Long distance lines are often much clearer than local lines. It is important to note that telephone companies are constantly upgrading their systems. Lines that ...

  • Page 48

    42 c hapter 4: t roub leshooting a nd h elp r esou rces locate your modem in the list of devices. If a yellow exclamation point appears over the modem’s description, your modem is in conflict with another device. Either your modem or the other device will have to be reinstalled to another irq in ord...

  • Page 49

    Internal pci modems 43 an irq for use by your modem. Refer to that device's documentation for more information about removing, disabling, or relocating it. Possible solution: you may be using a com port address that is either already in use or not configured correctly. To work properly, this modem n...

  • Page 50

    44 c hapter 4: t roub leshooting a nd h elp r esou rces com ports may be configured incorrectly. If this is the case, you may need to contact your computer manufacturer. Windows nt turn off your computer and remove your modem. Restart and click windows start, settings, and then control panel. Double...

  • Page 51

    Internal pci modems 45 the properties of modems from this window. The u.S. Robotics modem you have installed should be present in the list of installed modems. If none of the modem descriptions in the list matches your u.S. Robotics modem or no modems are listed, your modem is not properly installed...

  • Page 52

    46 c hapter 4: t roub leshooting a nd h elp r esou rces office users possible solution: you may have plugged your modem's phone cord into a digital line. Contact your phone system administrator if you are unsure whether or not your phone line is digital. If your phone system requires dialing “9” to ...

  • Page 53

    Help resources 47 analog-to-digital conversion. The 56k signal from your isp begins as a digital signal. Somewhere between the isp and your modem, there will be an analog-to-digital signal conversion so that your modem can receive the data. There must be no more than one analog-to-digital signal con...

  • Page 54

    48 c hapter 4: t roub leshooting a nd h elp r esou rces are you still having problems? 1 review this manual. 2 call or visit your modem dealer. Your dealer may be able to provide immediate assistance. 3 if your dealer can't help you, contact u.S. Robotics customer support. When you call, specify you...

  • Page 55

    Are you still having problems? 49 keating technologies (905) 479 0231 8:00 am - 8:00 pm est monday - friday if you need to return the modem to u.S. Robotics for repair contact u.S. Robotics customer support. If the support representative determines that you need to return the modem for repair or rep...

  • Page 56

    50 c hapter 4: t roub leshooting a nd h elp r esou rces.

  • Page 57: Lossary

    5 g lossary analog loopback a modem self-test in which data from the keyboard or an internal test pattern is sent to the modem's transmitter, turned into analog form, looped back to the receiver, and converted back into digital form. Analog signals a variety of signals and wavelengths that can be tr...

  • Page 58

    52 c hapter 5: g l ossa ry asynchronous transmission data transmission in which the length of time between transmitted characters may vary. Because characters may not be transmitted at set intervals, start/stop bits are used to mark the beginning and end of each character. Auto answer sets the modem...

  • Page 59

    53 buffer a temporary memory area used as storage during input and output operations. An example is the modem's command buffer. Byte a group of binary digits stored and operated upon as a unit. Most often the term refers to 8-bit units or characters. One kilobyte (kb) is equal to 1,024 bytes or char...

  • Page 60

    54 c hapter 5: g l ossa ry data communications the transmission or sharing of data between computers via an electronic medium. Data compression table a table containing values assigned for each character during a call under mnp5 data compression. Default values in the table are continually altered a...

  • Page 61

    55 duplex indicates a communications channel capable of carrying signals in both directions. See half duplex, full duplex. Electronic industries association (eia) group which defines electronic standards in the u.S. Error control various techniques that check the reliability of characters (parity) o...

  • Page 62

    56 c hapter 5: g l ossa ry half duplex signals can flow in both directions, but only one way at a time. In microcomputer communications, may refer to activation of the online local echo, which causes the modem to send a copy of the transmitted data to the screen of the sending computer. Hz hertz, a ...

  • Page 63

    57 mnp microcom networking protocol, an error-control protocol developed by microcom, inc., and now in the public domain. There are several different mnp protocols, but the most commonly used one ensures error-free transmission through error detection (crc) and retransmission of flawed frames. Modem...

  • Page 64

    58 c hapter 5: g l ossa ry parity a simple error-detection method that checks the validity of a transmitted character. Character checking has been surpassed by more reliable and efficient forms of error checking, including v.42 and mnp 2-4 protocols. Either the same type of parity must be used by tw...

  • Page 65

    59 start/stop bits the signaling bits attached to a character before and after the character is transmitted during asynchronous transmission. Terminal a device whose keyboard and display are used for sending and receiving data over a communications link. Differs from a microcomputer or a mainframe i...

  • Page 66

    60 c hapter 5: g l ossa ry v.22 an itu-t standard for modem communications at 1200 bps, compatible with the bell 212a standard observed in the u.S. And canada. V.22 bis an itu-t standard for modem communications at 2400 bps. The standard includes an automatic link negotiation fallback to 1200 bps an...

  • Page 67

    61 v.42 an itu-t standard for modem communications that defines a two-stage process of detection and negotiation for lapm error control. V.42 bis an extension of itu-t v.42 that defines a specific data compression scheme for use during v.42 connections. V.90 the itu-t standard for 56 kbps modem comm...

  • Page 68

    62 c hapter 5: g l ossa ry x2 tm technology u.S. Robotics's trademark for its proprietary technology that uses the digital telephone network to increase the bit rate of the receive channel by eliminating the analog to digital conversion commonly found in modem connections. X2 connections require a m...

  • Page 69: Echnical

    6 t echnical r eference front-of-the-case lights (external serial faxmodems) symbol meaning status aa auto answer mode on when register s0 is set to 1 or higher (auto answer), and when answering a call; off when modem originates a call. Light flashes when there is an incoming call. Cd carrier detect...

  • Page 70

    64 c hapter 6: t ec hn ica l r eferenc e top-of-the-case lights (voice faxmodem pro externals) typing commands ■ type commands in either upper or lower case, not a combination. Use the backspace key to delete errors. (you cannot delete the original at command.) ■ if a command has numeric options and...

  • Page 71

    Basic data commands 65 c or k stop help screens. $ use in conjunction with d, s, or & commands (or just at) to display a basic command list; online help. A manual answer: goes off hook in answer mode. Pressing any key before connected aborts the operations. A/ re-executes the last issued command. Us...

  • Page 72

    66 c hapter 6: t ec hn ica l r eferenc e t tone dial , (comma) pause. Linked to s8 register. ; (semicolon) return to command mode after dialing. " dials the letters that follow (in an alphabetical phone number). ! (exclamation point) flashes the switch hook. / delays for 125 ms. Before proceeding wi...

  • Page 73

    Basic data commands 67 i3 product type i4 current modem settings i5 nonvolatile memory (nvram) settings i6 link diagnostics i7 product configuration i9 plug and play information i11 extended link diagnostics ln controls speaker volume (internals only). L0 low volume l1 low volume l2 medium volume l3...

  • Page 74

    68 c hapter 6: t ec hn ica l r eferenc e q0 displays result codes. Q1 quiet mode; no result codes. Q2 displays result codes only in originate mode. Sr=n sets register r to n. Sr? Displays contents of s-register r. S$ displays a list of the s-registers. T sets tone dial. Vn displays verbal/numeric re...

  • Page 75

    Basic data commands 69 13/connect 9600 * * * * 18/connect 4800 * * * * 20/connect 7200 * * * * 21/connect 12000 * * * * 25/connect 14400 * * * * 43/connect 16800 * * * * 85/connect 19200 * * * * 91/connect 21600 * * * * 99/connect 24000 * * * * 103/connect 26400 * * * * 107/connect 28800 * * * * 151...

  • Page 76

    70 c hapter 6: t ec hn ica l r eferenc e *requires @ in dial string; replaces no carrier yn selects power-on/reset default configuration. Y0 use profile 0 setting in nvram y1 use profile 1 setting in nvram y2 use factory configuration 0. Y3 use factory configuration 1. Y4 use factory configuration 2...

  • Page 77

    Extended data commands 71 extended data commands &$ displays a list of ampersand (&) commands. &an enables/disables added result code subsets (see xn). &a0 arq result codes disabled &a1 arq result codes enabled &a2 v.32 modulation indicator added &a3 protocol indicators added lapm/mnp/none (error co...

  • Page 78

    72 c hapter 6: t ec hn ica l r eferenc e &f2 software flow control template &gn sets guard tone. &g0 no guard tone, u.S. And canada &g1 550 hz guard tone, some european countries, requires b0 setting. &g2 1800 hz guard tone, u.K., requires b0 setting. &hn sets transmit data (td) flow control (see al...

  • Page 79

    Extended data commands 73 &m2 reserved &m3 reserved &m4 normal/arq &m5 arq mode &nn sets connect speed. If connection cannot be made at this speed, the modem will hang up. When used in conjunction with &un and &un is greater than 0, &nn sets the ceiling connect speed. &un sets the floor connect spee...

  • Page 80

    74 c hapter 6: t ec hn ica l r eferenc e &n15 31,200 bps &n16 33,600 bps note: &n17 through &n39 apply only to v.90 and v.92 products. &n17 28,000 bps &n18 29,333 bps &n19 30,666 bps &n20 32,000 bps &n21 33,333 bps &n22 34,666 bps &n23 36,000 bps &n24 37,333 bps &n25 38,666 bps &n26 40,000 bps &n27 ...

  • Page 81

    Extended data commands 75 &n37 54,666 bps &n38 56,000 bps &pn sets pulse (rotary) dial make/break ratio. &p0 u.S./canada ratio, 39%/61% &p1 u.K. Ratio, 33%/67% &rn sets receive data (rd) hardware flow control, request to send (rts) (see also &hn). &r0 reserved &r1 modem ignores rts &r2 received data...

  • Page 82

    76 c hapter 6: t ec hn ica l r eferenc e &un with n > 0, sets the floor connect speed (lowest acceptable connection speed). Note: if your modem cannot connect to the remote modem at or above the speed set with this command, it will hang up. &n=0 &u=0connects at highest available speed. Note:this def...

  • Page 83

    Extended data commands 77 &u15 31,200 bps &u16 33,600 bps note: &u17 through &u39 apply only to v.90 and v.92 products. &u17 28,000 bps &u18 29,333 bps &u19 30,666 bps &u20 32,000 bps &u21 33,333 bps &u22 34,666 bps &u23 36,000 bps &u24 37,333 bps &u25 38,666 bps &u26 40,000 bps &u27 41,333 bps &u28...

  • Page 84

    78 c hapter 6: t ec hn ica l r eferenc e &u37 54,666 bps &u38 56,000 bps &wn writes current configuration to nvram templates. &w0 modifies the nvram 0 template (y0) &w1 modifies the nvram 1 template (y1) &yn sets break handling. &y0 destructive, but doesn't send break &y1 destructive, expedited &y2 ...

  • Page 85

    Extended data commands 79 off verbal (word) results on numeric results 3 on result code display off suppresses result codes on enables result codes 4 off command mode local echo suppression off displays keyboard commands on suppresses echo 5 on auto answer suppression off modem answers on first ring...

  • Page 86

    80 c hapter 6: t ec hn ica l r eferenc e s registers table6-3 register default function s0 0 sets number of rings on which to answer in auto answer mode. When set to 0, auto answer is disabled. S1 0 counts and stores number of rings from an incoming call. (s0 must be greater than 0.) s2 43 stores as...

  • Page 87

    S registers 81 s9 6 sets required duration, in tenths of a second, of remote modem's carrier signal before recognition by your 3com u.S. Robotics modem. S10 14 sets duration, in tenths of a second, that modem waits to hang up after loss of carrier. This guard time allows your modem to distinguish a ...

  • Page 88

    82 c hapter 6: t ec hn ica l r eferenc e s18 0 test timer for &t loopback testing. Sets the time in seconds of testing before the modem automatically times out and terminates the test. When set to 0, the timer is disabled. Valid range is 1-255. S19 0 sets duration, in minutes, for inactivity timer. ...

  • Page 89

    S registers 83 8 default item, all times are in tenths of seconds. 255 disables all connections except v.32 at 9600 bps. S29 20 sets the duration, in tenths of a second, of the v.21 answer mode fallback timer. S30 0 reserved s31 128 reserved s32 2 bit-mapped register setup. To set the register, see ...

  • Page 90

    84 c hapter 6: t ec hn ica l r eferenc e bit-mapped registers to set a bit-mapped register, select the bit(s) you want on and set the register (for example, s13) to the total of the values in the value column. For example, ats13 = 17 enables bit 0 (value is 1) and bit 4 (value is 16). Table6-4 setti...

  • Page 91

    Bit-mapped registers 85 7 128 disable v.42 operation. Note:to disable v.42 detect phase, select sum of bits 3 and 7 (in other words s15 = 136 [8 + 128]) table6-6 settings for s27 bit value result 0 1 enables itu-t v.21 modulation at 300 bps for overseas calls; in v.21 mode, the modem answers both ov...

  • Page 92

    86 c hapter 6: t ec hn ica l r eferenc e table6-7 settings for s32 bit value results 0 1 v.8 call indicate enabled. 1 2 enables v.8 mode. 2 4 reserved. 3 8 disable v.34 modulation. 4 16 disable v.34+ modulation. 5 32 disable x2 modulation. 6 64 disable v.90 modulation. 7 128 disable v.92 modulation ...

  • Page 93

    Bit-mapped registers 87 4 16 reserved. 5 32 reserved. 6 64 reserved. 7 128 reserved. Table6-9 settings for s41 bit value results.

  • Page 94

    88 c hapter 6: t ec hn ica l r eferenc e.

  • Page 95: Egulatory

    7 r egulatory i nformation manufacturer's declaration of conformity we declare under our sole responsibility that this product (56k faxmodem) to which this declaration relates, is in conformity with the following standards or more normative documents: ansi c63.4-1992 methods of measurement federal c...

  • Page 96

    90 c hapter 7: r egul atory i nf orma tion (2) this device must accept any interference received including interference that may cause undesired operations. Caution to the user the user is cautioned that any changes or modifications not expressly approved by the party responsible for compliance coul...

  • Page 97

    Caution to the user 91 caution to the user to avoid the risk of electrical shock, disconnect the phone cord from the modem and unplug the power to the computer before removing the cover. Fax branding the telephone consumer protection act of 1991 makes it unlawful for any person to use a computer or ...

  • Page 98

    92 c hapter 7: r egul atory i nf orma tion allowed to be connected to a telephone interface. The termination on an interface may consist of any combination of devices subject only to the requirement that the sum of the ringer equivalence numbers of all devices does not exceed 5. The ringer equivalen...

  • Page 99

    For canadian modem users 93 exigences techniques relatives au matériel terminal. Le ministère n'assure toutefois pas que le matériel fonctionnera à la satisfaction de l'utilisateur. Avant d'installer ce matériel, l'utilisateur doit s'assurer qu'il est permis de le raccorder aux installations de l'en...

  • Page 100

    94 c hapter 7: r egul atory i nf orma tion.