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Cabletron Systems TRMIM-20R Installation Manual

Manual is about: UTP TOKEN RING CONCENTRATOR MEDIA INTERFACE MODULE

Summary of TRMIM-20R

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    Trmim-20r utp token ring concentrator media interface module installation guide cabletron systems, p. O. Box 5005, rochester, nh 03867-5005 the complete networking solution.

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    Notice cabletron systems reserves the right to make changes in specifications and other information contained in this document without prior notice. The reader should in all cases consult cabletron systems to determine whether any such changes have been made. The hardware, firmware, or software desc...

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    Fcc notice this device complies with part 15 of fcc rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Warning: this equ...

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    Contents iii contents chapter 1 introduction 1.1 using this manual ......................................................................1-1 1.2 the trmim-20r ..........................................................................1-2 1.3 related manuals ..............................................

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    Contents (cont.) chapter 4 testing and troubleshooting 4.1 installation checkout ..................................................................4-1 4.2 using lanview .........................................................................4-2 appendix a basic token ring networks a.1 basic token r...

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    Introduction page 1-1 chapter 1 introduction welcome to the trmim-20r token ring passive concentrator media interface module installation guide. This guide is designed to serve as a reference for the installation and troubleshooting of cabletron systems’ trmim-20r. The trmim-20r is a token ring netw...

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    Introduction page 1-2 chapter 4, testing and troubleshooting, describes lanview , cabletron systems’ built-in visual diagnostic and status monitoring system, and gives procedures for verifying the proper installation of the trmim-20r. Appendix a, basic token ring networks, covers basic operation and...

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    Introduction page 1-3 the trmim-20r supports voice grade utp at lobe lengths of up to 100 meters at 4 mbit/sec and up to 60 meters at 16 mbit/sec. Supported cable types and lengths are listed in chapter 2, installation requirements/specifications. Figure 1-1. Trmim-20r token ring concentrator trmim-...

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    Introduction page 1-4 it is possible to have several network types and media in one mmac, such as a shielded twisted pair token ring network and a thin-net ethernet network. There are a number of configuration guidelines concerning multiple networks within an mmac. These guidelines are listed in cha...

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    Introduction page 1-5 cabletron systems’ trmim-22 utp passive token ring media interface module installation guide. 1.4 recommended reading the following publications are recommended if more information is required on implementing a token ring network. Local area networks, token ring access method, ...

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    Requirements/specifications page 2-1 chapter 2 installation requirements/ specifications before you attempt to install your trmim-20r, review the installation requirements and operating specifications outlined in this chapter. The conditions, guidelines and requirements described in this chapter mus...

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    Requirements/specifications page 2-2 lobe cabling - in addition to ibm type 3 unshielded twisted pair (utp), the trmim-20r supports voice grade utp cable as described in eia standard proposal no. 1907-a. Table 2-1 lists ibm cable types. 2.1.2 cable lengths the trmim-20r is a passive concentrator. It...

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    Requirements/specifications page 2-3 drive distance - drive distance is the limit of reliable signal propagation without the installation of repeaters in the ring. The maximum drive distance using type 1 stp cabling is 770 meters (2525 feet) at 4 mbit/sec and 346 meters (1138 feet) at 16 mbit/sec. T...

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    Requirements/specifications page 2-4 table 2-2. Recommended maximum lobe length maximum lobe length 4 mbit/sec 16 mbit/sec voice grade utp (or ibm type 3) 100 meters 60 meters 2.1.3 impedance the characteristic impedance for utp cable is 100 ohms ± 15% and 150 ohms (@ 1 mhz to 20 mhz) ± 10% for stp ...

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    Requirements/specifications page 2-5 2.1.7 noise noise can be caused by either crosstalk or externally induced impulses. If noise induced errors are suspected, it may be necessary to re-route cabling away from potential noise sources (motors, switching equipment, high amperage equipment), or to ensu...

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    Requirements/specifications page 2-6 when a trmim-20r is installed, the ring sequence starts at the externally accessible ring-in port. If the concentrator is detached (by software, incompatible ring speed or empty adjacent slots) from other token ring boards, the ring sequence is restricted to the ...

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    Requirements/specifications page 2-7 rx + tx- tx+ rx- 1 2 3 4 5 6 7 8 female rj-45 tcu ports: pin pin 1 no connection 5 rx– 2 no connection 6 tx+ 3 tx– 7 no connection 4 rx+ 8 no connection figure 2-1. Trunk coupling unit rj-45 pinout stp trunk connections - two female db-9 connectors for attaching ...

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    Requirements/specifications page 2-8 6 7 8 9 1 2 3 4 5 primary ring backup ring trunk wrap connector - two male wrap plugs are provided with each trmim-20r. The trmim-20r does not automatically wrap. When no external trunk cable is attached at either ring port (ring-in/ ring out), or if a ring port ...

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    Requirements/specifications page 2-9 table 2-3. Lanview leds label color description 16 mb yellow ring speed indicator on trmim-20r is set for 16 mbit/sec off trmim-20r is set for 4 mbit/sec ri/ro green ring-in/ring-out status (2) on respective ring port is in a non-wrap state off respective ring po...

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    Requirements/specifications page 2-10 physical dimensions 13.4d x 11.5h x 2.0w inches (34.0d x 29.2h x 5.1w centimeters) (includes front panel) weight 2 lbs. 2 oz. (963.9 grams).

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    Installing the trmim-20r page 3-1 chapter 3 installing the trmim-20r this chapter contains instructions for installing the trmim-20r into a cabletron systems’ mmac. Instructions for connecting a twisted pair segment to the mim for operation are also included. Check that all requirements listed in ch...

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    Installing the trmim-20r page 3-2 3.2 installing the trmim-20r into the mmac the trmim-20r is designed to be easily installed into an mmac product when you install the trmim-20r, the following guidelines must be followed: • the trmim-20r cannot be installed into slot 0. Slot 0 is reserved for an irm...

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    Installing the trmim-20r page 3-3 ... Network speed jumper ten rj-45 connectors (six on mother board, and four on daughter board) daughter board mother board front panel x x x x x x 4 mbit/sec 16 mbit/sec j1 j1 two db-9 receptacles on the daughter board figure 3-1. Network speed jumper 4. Secure the...

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    Installing the trmim-20r page 3-4 3.3 cabling the trmim-20r prior to connecting cables, check that the the pinout and maximum cable lengths throughout the system conform to the requirements described in chapter 2, installation requirements/ specifications. Since the trmim-20r uses differential manch...

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    Installing the trmim-20r page 3-5 attaching utp lobe cables to the trmim-20r to attach a utp lobe cable to the trmim-20r: 1. Connect the male rj-45 connector from one end of the utp lobe cable to a port on the trmim-20r (see figure 3-4). 2. If a patch panel is to be used, connect the other end of th...

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    Installing the trmim-20r page 3-6 3.3.2 trunk cabling the trmim-20r ring-in/ring-out ports support stp trunk cable connections. The physical trunk connections, for both the ring-in and ring-out ports (see figure 3-4), consist of two pairs of wire: a transmit signal pair (tx+, tx-) and a receive sign...

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    Installing the trmim-20r page 3-7 the stp trunk cables are attached to the trmim-20r using male db-9 connectors. If a patch panel is to be used, connect ring-in from the patch panel to ring-in of the trmim-20r and ring-out from the patch panel to ring-out on the trmim-20r. When connections are made ...

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    Installing the trmim-20r page 3-8 complete the installation by doing the following: 1. Ensure the mmac and the stations are powered on. 2. Ensure that all leds on the mim and any leds on the stations are illuminated properly, with no error conditions shown. If they are not in a normal condition, pro...

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    Testing and troubleshooting page 4-1 chapter 4 testing and troubleshooting this section contains procedures to verify the cabling connecting the trmim-20r to the token ring network and any attached stations. A description of lanview and its function in troubleshooting physical layer network problems...

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    Testing and troubleshooting page 4-2 4. Verify that the maximum number of stations and maximum cable lengths for each station are not exceeded. When these checks have been successfully completed for each connection to the trmim-20r, the mim is ready for normal operation. If further problems occur, c...

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    Testing and troubleshooting page 4-3 • 16 mb - the ring speed led (yellow) is lit to indicate that the trmim-10r ring speed is set to 16 mbit/sec. When this indicator is not lit, the ring speed is set to 4 mbit/sec. The ring speed is set to a default setting by hardware jumper, j1 (refer to chapter ...

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    Basic token ring networks page a-1 appendix a basic token ring networks this appendix covers the basic operation and concepts related to design considerations for token ring networks. A.1 basic token ring operation a token ring network is made up of a number of stations electrically connected to for...

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    Basic token ring networks page a-2 basic token ring protocol this summary briefly covers a basic subset of the overall token ring access protocol. The ieee standard 802.5 provides greater detail on token ring access methods and should be referenced whenever more complete information is needed. Each ...

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    Basic token ring networks page a-3 3. The frame addressed for yyy circulates around the ring. All stations in the ring examine the frame, checking the address, in successive order. When the transmission gets to yyy, station yyy copies the data as it goes past. 4. When the original transmission finis...

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    Basic token ring networks page a-4 early token release early token release (etr) is a second protocol option presented in the ieee 802.5 standard. Etr is an optional protocol that may be used with 16 mbit/sec 802.5 token ring networks. It has the advantage of increasing the efficiency of the ring by...

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    Basic token ring networks page a-5 case of cabletron systems’ token ring repeater (trrmim-16), convert from one media type to another (eg. Shielded twisted pair to fiber optic). Converters (not illustrated) provide the means for changing from one media type to another. Usually, the conversion allows...

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    Basic token ring networks page a-6 reliability since token ring networks depend on ring topology for proper operation, the entire network is vulnerable to the frailties of each ring segment. Arranging the ring as a star, using concentrators, and providing trunk coupling units for the station connect...

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    Basic token ring networks page a-7 a.2 design considerations a major design consideration is ring length. The ring propagation must be long enough to accommodate an entire token (24 bit times) and still be short enough for the transmitting devices to reliably send information to the next station. Th...

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    Basic token ring networks page a-8 arl is calculated by combining the lengths of all the trunk cables, subtracting the length of the shortest trunk cable (typically an 8-foot patch cable within a wiring closet) and then doubling the result (lobe cabling is not part of the arl calculation). The impac...

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    Applications page b-1 appendix b applications this appendix presents the following network applications as examples of how the trmim-20r may be used in a token ring network. These are examples to help clarify features and applications for the trmim-20r and actual applications are not limited to thos...

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    Applications page b-2 b.2 separate token ring networks in one mmac figure b-2 shows three independent token ring networks within the same mmac-8. The mmac-8 has eight slots. The irm occupies slot 0, leaving seven slots available for network boards. Cabletron systems’ token ring products are recogniz...

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    Applications page b-3 b.3 token ring networks bridged together figure b-3 illustrates the bridging of two token ring networks together using a token ring to token ring network bridge. Bridging ring networks is necessary when: the networks are of different ring speeds (one at 4 mbit/sec and the other...

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    Applications page b-4 b.4 mmac with ethernet and token ring simultaneously figure b-4 illustrates the simultaneous installation of an ethernet network with a token ring network in the same mmac. To connect the two networks together requires a token ring to ethernet bridge. Without this bridge, infor...

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    Calculating ring length page c-1 appendix c calculating ring length this appendix presents methods for calculating cable lengths for passive token ring networks or passive network segments giving consideration to adjusted ring length (arl). These calculations differ between networks that are wholly ...

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    Calculating ring length page c-2 • wherever type 6 or type 9 cable is used, the length must be converted to the equivalent type 1 cable length as follows: (length of type 6 or 9 cable) x 3/2 = equivalent type 1 or 2 length c.2 single wiring closet networks in a single wiring closet application, all ...

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    Calculating ring length page c-3 6. Determine your actual longest lobelength, combine: tcu port to patch panel feet wiring closet to wall plate + feet wall plate to station + feet longest lobe length 7. Compare the maximum utp lobe length, calculated in step 5, with your networks longest lobe, from ...

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    Calculating ring length page c-4 figure 6-1. Wiring in a single wiring closet formulas two formulas were used to create the tables for the utp cable length worksheets. The first defines the cabling for a single wiring closet with only one rack and the second for multiple racks within the wiring clos...

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    Calculating ring length page c-5 single rack internal trunk length = (concentrator to concentrator patch cables) where: concentrator to concentrator patch cables = 12' x number of concentrators (see note) note: wrap plugs must be installed if no external trunk cabling is connected at the trmim-20r r...

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    Calculating ring length page c-6 internal trunk length for a single wiring closet number of number of racks (single closet) concentrators 1 2 3 4 5 6 7 8 9 10 1 12 2 24 90 values are type 1 3 36 102 135 equivalent in feet 4 48 114 147 180 5 60 126 159 192 225 6 72 138 171 204 237 270 7 84 150 183 21...

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    Calculating ring length page c-7 c.3 multiple wiring closet networks in multiple wiring closet applications, both external trunk cable length and lobe cable length must be considered in the overall drive distance for a passive ring. Use the utp cable length worksheet, multiple wiring closet form tow...

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    Calculating ring length page c-8 5. Add the equivalent type 1 lobe length(step 3) to the combined trunk length (step 4) to find the internal drive distance, and enter the sum here and on line 4a. Internal drive distance = combined trunk length + actual longest lobe 6. The maximum drive limit, when c...

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    Calculating ring length page c-9 use figure c-2 to follow the calculations using the utp cable length worksheet for multiple wiring closets in the following example of a 4 mbit/sec ring. Example: multiple wiring closet 4 mbit/sec 1. Actual longest lobe (given as 85 feet) 1. 85 ft. 2. Utp to type 1 s...

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    Calculating ring length page c-10 figure c-2. Building cable budget formulas the formulas used to create the table for the utp cable length worksheet for multiple wiring closets yield values equal to the length of internal cabling within wiring closets (see figure c-3) in a multiple closet configura...

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    Calculating ring length page c-11 internal trunk length = 2 x (tcu patch cables) + (rack to rack patch cables) + (concentrator to concentrator patch cables) where: tcu patch cables = 12' rack to rack patch cables = 45' x (number of racks - 1) concentrator to concentrator patch cables = 12' x (number...

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    Calculating ring length page c-12 5. Internal drive distance 3. Equivalent type 1 lobe length 6. Maximum drive limit 1. Actual longest utp lobe multiple wiring closets (1263 feet for 4 mbit/s or 569 feet for 16 mbit/s) 2. Utp to type 1 stp conversion (2.54 for 4 mbit/s or 2.91 for 16 mbit/s) (3) + (...

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    Calculating ring length page c-13 c.4 calculating mixed cable types when calculating cable lengths for installations using mixed cable types, you must compensate for different cable attenuations. Usually cable lengths are most useful when converted to a type 1 equivalent length. Use the following fo...