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Leader LT 4446 Instruction Manual

Manual is about: CHANGEOVER

Summary of LT 4446

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    Lt 4446 / lt 4447 changeover instruction manual uso restrito.

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    Table of contents general safety summary ......................................................................................... I 1. Introduction ........................................................................................................ 1 1.1 scope of warranty .........................

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    4.5.4 setting the fault detection reference ............................................................................. 22 4.5.5 setting the fault detection level (user-defined) ............................................................. 23 4.5.6 setting the operation mode and standby time ........

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    General safety summary i ■ read this before using the instrument this instrument should only be used by persons with sufficient knowledge of electronics who thoroughly understand the contents of this manual. This instrument is not designed or manufactured for households or ordinary consumers. If unq...

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    General safety summary ii read the warnings and information below thoroughly to avoid death, personal injury, and damage and deterioration of the instrument. ■ warnings concerning the case and panels do not remove the instrument's case or panels (except for the power supply unit, fan unit, and dip s...

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    General safety summary 3 ■ warnings concerning the power source do not use a power source with a voltage other than the rated power source voltage for the instrument. Doing so could lead to fire. Confirm the voltage of the power source before you connect the power cord to it. Only use a power source...

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    General safety summary 4 ■ calibration and repair this instrument has been carefully examined at the factory to ensure that its performance is in accordance with the standards. However, because of factors such as parts wearing out over time, the performance of the instrument may degrade. To ensure s...

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    1. Introduction 1 1. Introduction thank you for purchasing this leader instrument. To use this instrument safely, read this instruction manual thoroughly, and make sure that you know how to use the instrument properly. If some point about the operation of this instrument is still unclear after you h...

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    1. Introduction 2 1.3 operating precautions 1.3.1 power supply voltage confirm the voltage of the power source before you connect the power cord to it. The power requirements of this product are indicated on the rear panel. Only use a power source that supplies a voltage within the operating voltage...

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    3 2. Specifications 2. Specifications 2.1 general the lt 4446/4447 is a changeover unit that automatically switches the signal from the primary signal to the backup signal when problems are detected in the primary signal. Two systems of input signals (primary and backup) are connected to the lt 4446...

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    4 2. Specifications ● power supply start time a delay for starting the fault detection at power up can be set to approximately 1 minute or approximately 4 minutes depending on the rise time of the system signal source that the lt 4446/4447 is connected to. ● snmpv1 ready error monitoring over an eth...

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    5 2. Specifications 2.3 specifications 2.3.1 compliant standards sdi signal 3g-sdi smpte st 372, smpte st 424, hd-sdi (including hd dual link) sd-sdi smpte st 425 smpte st 274, smpte st 292, smpte st 296 itu-r bt.601, itu-r bt.656, smpte st 125, smpte st 259 sync signal ntsc black burst signal smpte...

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    6 2. Specifications ch4 to 10 return loss 30 db (0 to 10 mhz, internally terminated) insertion loss 0.3 db (0 to 10 mhz) crosstalk -55 db (0 to 10 mhz) -45 db (10 to 30 mhz) input impedance 75Ω output impedance 75Ω maximum input voltage ±1.5v ch11 input impedance approx. 4 kΩ output impedance approx...

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    7 2. Specifications 2.3.6 fault detection fault indication indicates with leds the problematic signal system (primary or backup) if a fault is detected fault channel indication indicates with leds the problematic channels when a fault is detected dc offset ±30 mv (sync signal only) high-speed detect...

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    8 2. Specifications 2.3.7 alarm detection alarm indications indicates with leds when errors are detected in output signals (channels 4 to 11 only), power supply, or fan unit (lt 4447 only) 2.3.8 key lock lock and unlock hold down the key lock key. Auto key lock automatically locks the keys after 60 ...

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    9 2. Specifications 2.3.12 general specifications environmental conditions operating temperature 0 to 40 °c operating humidity range 90 %rh or less (no condensation) optimal temperature 5 to 35 °c optimal humidity 85 %rh or less (no condensation) operating environment indoors elevation up to 2,000 m...

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    3. Panel description 10 3. Panel description 3.1 front panel figure 3-1 front panel table 3-1 front panel description no. Name description reference 1 alarm the leds light or blink when errors are detected in the power supply (lt 4446 only), rear-panel fan unit (lt 4447 only), or the output signals ...

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    3. Panel description 11 3.2 rear panel figure 3-2 lt 4446 rear panel figure 3-3 lt 4447 rear panel table 3-2 rear panel description no. Name description reference 1 primary primary signal input connector 4.6 2 output transmits the signal that is received through primary or backup 4.6 3 backup backup...

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    3. Panel description 12 3.3 top panel figure 3-4 top panel table 3-3 top panel description no. Name description reference 1 dip switch cover remove the four screws to access the dip switches. You can use the dip switches to configure the lt 4446/4447. An explanation of the dip switch settings is pri...

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    13 4. How to use 4. How to use 4.1 attaching the cover inlet stopper a cover/inlet stopper is included with the lt 4446/4447. Use this device to prevent the power cord from being pulled free of the ac inlet. To attach or remove the cover/inlet stopper, follow the procedure below. ● attaching the cov...

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    14 4. How to use 4.2 attaching rack supports to rack mount the lt 4446/4447, attach the supplied rack supports. Using a phillips head screwdriver (#2), torque the screws to 63 [cn•m] for the lt 4446 and 147[cn•m] for the lt 4447. Be sure to provide additional support for the body of the instrument. ...

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    15 4. How to use 4.3 turning the power on the lt 4446/4447 power supplies are redundant. When both power supplies are turned on, operation continues uninterrupted even if one of the power supplies fails. With the lt 4446, connect the power cords to ac input 1 and ac input 2. When the power turns on,...

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    16 4. How to use 4.4 turning the power off with the lt 4446, remove the power cords from ac input 1 and ac input 2. With the lt 4447, flip the front- panel power 1 and power 2 switches off (to the ○ side). When you turn off the power, the output signals of channels 1 to 11 are set to primary. 4.5 di...

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    17 4. How to use the settings are listed below. For details on each item, see the following sections in chapter 4. A simple explanation of the settings is also printed on the back side of the dip switch cover. Table 4-1 list of settings setting name remark factory default value input signal settings...

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    18 4. How to use 4.5.2 setting the input signals set the input signal for each channel. The factory default setting is “no input signal” for all channels. Figure 4-6 input signal settings uso restrito.

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    19 4. How to use the channels that you can apply signals to differ depending on the type of input signal as shown below. The signal switching method is relay for channels 1 to 3 and electronic switch for channels 4 to 11. If the specified signal is not received, it will be detected as a fault. For c...

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    4. How to use 20 4.5.3 setting the fault detection speed for each channel, select the length of time that must elapse before the lt 4446/4447 automatically switches to the backup signal when a fault is detected in the primary signal. You can select this setting for channels 4 to 11. For channels 1 t...

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    4. How to use 21 table 4-3 setting the fault detection speed dip switch position number input channel fault detection speed off (high speed) on (low speed) top row sw1 ch4 1.5 h or less 60 ms or less sw2 ch5 1.5 h or less 60 ms or less sw3 ch6 1.5 h or less 60 ms or less sw4 not used (*1) - - bottom...

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    4. How to use 22 4.5.4 setting the fault detection reference if the fault detection speed is set to low speed or for channels 1 to 3, select the level at which a fault is to be detected for each input signal. Set either vref-low or vref-high to on. Normally, set vref-low to on. If you set vref-high ...

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    4. How to use 23 4.5.5 setting the fault detection level (user-defined) set up to two input signal levels at which a fault is to be detected. In section 4.5.2 , “setting the input signals,” specify user setting 1 or user setting 2 before adjusting the trimmer. Table 4-9 fault detection level setting...

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    4. How to use 24 4.5.6 setting the operation mode and standby time ● setting the operation mode normally, you can use the front-panel sync source key to switch the output signal, but when faults are detected in either of the input signals (primary or backup), you cannot switch to the fault signal. I...

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    4. How to use 25 4.6 signal i/o apply the primary signal to primary and the backup signal to backup. The input signal impedance is 75 Ω. Terminate the output connectors at 75 Ω. (the signal that is not selected with the front-panel sync source setting is terminated internally at 75 Ω.) depending on ...

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    4. How to use 26 4.7 lt 4446/4447 configuration 4.7.1 setting the key lock the lt 4446/4447 locks its keys after 1 minute of inactivity (no key operations). When the key lock is on, front-panel key operations are not accepted. To perform front-panel key operations, turn the key lock off. Hold down t...

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    4. How to use 27 depending on the auto switching setting and the mode dip switch setting, the operation of the lt 4446/4447 differs as shown below. Reference for details on mode, see 4.5.6, “setting the operation mode and standby time” table 4-8 lt 4446/4447 operations lt 4446/4447 setting input sig...

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    4. How to use 28 4.8 lt 4446/4447 indications 4.8.1 fault indication ● fault indication there are two areas for indicating faults: fault and fault indicator. Both areas indicate the fault detection of input signals. In the fault area, the led of a fault-detected channel lights in red. In the fault i...

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    4. How to use 29 4.8.2 alarm indications ● output alarm indications (channels 4 to 11 only) signals received through primary or backup are usually output through amplifiers, but if an error is detected in the amplifier or output signal, the relevant alarm led lights in red. In such a case, the outpu...

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    4. How to use 30 ● fan alarm indication (lt 4447 only) the fan led lights in red when an error occurs in the fan unit on the rear panel. If the led lights even when the fan is installed properly, contact your local leader agent. Figure 4-21 fan alarm indication uso restrito.

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    31 5. Remote control 5. Remote control you can use the rear-panel remote-control connector to perform functions such as configuring the lt 4446/4447 and transmitting fault information. The remote control connector and its pin assignments are shown below. Figure 5-1 remote-control connector (9-pin d-...

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    32 5. Remote control table 5-2 remote connector i/o specifications pin no. I/o i/o specifications connection example 1 i connect a switch to apply a low-level signal. Connect one side of the switch to the remote connector and the other side to ground. 2 6 3 o connect an led so that it will light whe...

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    33 6. Ethernet control 6. Ethernet control by using snmp (simple network management protocol), you can check the lt 4446/4447 status from an snmp manager. Additionally, you can notify the snmp managers of errors that the lt 4446/4447 generates. * the ethernet features of the lt 4446/4447 have only b...

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    34 6. Ethernet control 3. When the following window appears, select the installation folder, and click next. Figure 6-2 installation 2 4. When the following window appears, click next. Figure 6-3 installation 3 uso restrito.

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    35 6. Ethernet control 5. When the following window appears, the installation is complete. Click close. When the installation is complete, two mib files lt4446-mib.Txt and lt4447-mib.Txt are created on the desktop. Figure 6-4 installation 4 6.1.2 uninstallation to uninstall the software, select “lt4...

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    36 6. Ethernet control 6.1.3 connection this section describes the procedure to connect the lt 4446/4447 to a pc and configure the lt 4446/4447 network and snmp settings. 1. Connect the usb port on the lt 4446/4447 front panel to the pc’s usb port. Use a usb cable (a/b). 2. Start “lt4446 setup” on t...

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    37 6. Ethernet control 4. Enter the proper values in the network and snmp areas, and click submit. 5. When the following window appears, click ok. Figure 6-7 configuration complete 6. Restart the lt 4446/4447. The network settings are applied after you restart the lt 4446/4447. 6.1.4 window explanat...

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    38 6. Ethernet control ● machine click get to display the lt 4446/4447 serial number, fpga version, and mac address. “password” is not used. ● network set the lt 4446/4447’s ip address, subnet mask, and default gateway. Enter these values, and then click submit. Pressing get shows the values current...

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    39 6. Ethernet control 6.2 snmp 6.2.1 snmp version the lt 4446/4447 supports snmpv1. 6.2.2 smi definitions imports module-identity, object-type, notification-type, enterprises from snmpv2-smi displaystring from snmpv2-tc object-group, module-compliance from snmpv2-conf; 6.2.3 how to use to notify th...

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    6. Ethernet control 40 6.2.4 enterprise mib ● mib files the mib files are created on the desktop when the software is installed in the pc. If you are using the lt 4446, use lt4446-mib.Txt. If you are using the lt 4447, use lt4447- mib.Txt. Reference 6.1.1, “installation” ● mib structure the lt 4447 ...

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    6. Ethernet control 41 ● access in the tables, “access” indicates the following: ro: information that can be read from the snmp managers r/w: information that can be read and written from the snmp managers table 6-1 fanunit(1) group (lt 4447 only) table 6-2 powerunit1(2) group mib oid syntax access ...

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    6. Ethernet control 42 table 6-5 ch4(7) group to ch11(14) group mib oid syntax access value description ch4inputstatus ch4.1 integer ro 1 normal 2 error-primary 3 error-backup 4 error-primary-backup ch4outputstatus ch4.2 integer ro 1 normal 2 error-output ch5inputstatus ch5.1 integer ro same as ch4(...

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    6. Ethernet control 43 table 6-7 remote(3) group mib oid syntax access value description remoteautoswitching remote.1 integer ro 1 on 2 off remotetogglesyncsource remote.2 integer ro 1 on 2 off remotefaultreset remote.3 integer ro 1 on 2 off table 6-8 ch1format(1) group to ch3format(3) group mib oid...

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    6. Ethernet control 44 table 6-9 ch4format(4) group to ch8format(8) group mib oid syntax access value description ch4formatstatus1 ch4format.1 integer ro 1 disable 2 ntsc 3 pal 4 720p 5 1080i/p 6 user define 1 7 user define 2 ch4formatstatus2 ch4format.2 integer ro 1 disable 2 60hz (1080i/720p) 3 59...

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    6. Ethernet control 45 table 6-11 ch11format(11) group mib oid syntax access value description ch11formatstatus1 ch11format.1 integer ro 1 disable 6 user define 1 7 user define 2 8 word clock ch11formatstatus2 ch11format.2 integer ro 1 disable ch11formatstatus3 ch11format.3 integer ro 1 disable tabl...

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    6. Ethernet control 46 6.2.5 specific trap type table 6-13 specific trap type ids specific trap type id event name description object data 1 fanunitstatus fan unit status change detection fanunit.Status 5 powerunit1status power supply unit 1 status change detection powerunit1.Status powerunit1.Fanst...

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    47 7. Maintenance (lt 4447 only) 7. Maintenance (lt 4447 only) 7.1 cleaning the air filters (when they are dirty) the power units on the front panel have air filters. When the air filters become dirty, clean them by following the procedure below. You can clean them while the power is turned on. 1. T...

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    48 7. Maintenance (lt 4447 only) 7.2 replacing the air filters (once every two years) air filters are consumables. If they tear or if two years have passed since the previous replacement, replace them by following the procedure below. You can replace them while the power is turned on. ● replacement ...

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    49 7. Maintenance (lt 4447 only) 7.4 replacing the power supply unit (once every three years) the power supply unit on the front panel is a consumable component. If an error occurs or if three years have passed since the previous replacement, replace it by following the procedure below. You can repl...

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    7. Maintenance (lt 4447 only) 50 4. Check that the power switch of the new power supply unit is off (○), and insert the unit. Check that vertical orientation. The label should be on top. When it is inserted properly, the alarm led turns on. 5. Tighten the power supply unit screws, and attach the sub...

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    Following information is for chinese rohs only 所含有毒有害物质信息 部件号码: lt 4446 / lt 4447 此标志适用于在中国销售的电子信息产品,依据2006年2月28日公布的 《电子信息产品污染控制管理办法》以及sj/t11364-2006《电子信息产品污染 控制标识要求》，表示该产品在使用完结后可再利用。数字表示的是环境保护使 用期限，只要遵守与本产品有关的安全和使用上的注意事项，从制造日算起在数 字所表示的年限内，产品不会产生环境污染和对人体、财产的影响。 产品适当使用后报废的方法请遵从电子信息产品的回收、再利用相关法令。 详细请咨...

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    Leader electronics corp. 2-6-33 tsunashima-higashi, kohoku-ku, yokohama 223-8505, japan phone:81-45-541-2123 fax:81-45-541-2823 http://www.Leader.Co.Jp may 1, 2014 ver. 1 uso restrito.