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MICRONTU G.703 CARD (120 OR 75 OHM)
Contents
1. Specifications.....................................................................................................5
2. Introduction ......................................................................................................6
3. Configuration ....................................................................................................7
3.1 Front-Card Configuration..........................................................................7
3.2 Rear-Card Configuration ...........................................................................9
3.2.1 Configuring the 120-Ohm Rear Card .............................................9
3.2.2 Configuring the 75-Ohm Rear Card .............................................12
4. Installation.......................................................................................................14
4.1 The MicroRack and Power Supplies .......................................................14
4.2 Installing the MicroNTU G.703 Card in the MicroRack Chassis ..........16
4.3 Connection to the G.703 Network ..........................................................17
4.3.1 Twisted-Pair (120-Ohm) Connection (MT245A).........................18
4.3.2 Dual Coax BNC (75-Ohm) Connection (MT246A).....................18
4.4 Connection to the Terminal Device .......................................................18
4.4.1 EIA-530 (RS-422) Terminal Connection (MT245A)....................18
4.4.2 X.21 Terminal Connection (MT246A).........................................19
5. Operation ........................................................................................................20
5.1 Power-Up ..................................................................................................20
5.2 LED Status Monitors ................................................................................20
5.3 Loopback Test (LAL) ..............................................................................22
Appendix. Interface Standards ..........................................................................23
