Isdn Card (T1/Pri Module) Details - Vertical comdial DX-120 Installation And Maintenance Manual

DX-120 Installation and Maintenance Manual
• D10 Signaling Synchronization indicator
Clock source
Backplane connector
Backplane interface covers the following:
• Power feeding
• PCM highway
• Control data interface

ISDN Card (T1/PRI Module) Details

The ISDN Card (T1/PRI Module) allows for expansion of the DX-120 system CO line interface to a capacity
maximum of 23 Digital CO line ports.
Capacity:
Network interface mode
Network connector
LED indicator
T1 Card (T1 Module) Details (continued)
• Synchronous = Green lit
• Non-Synchronous = Dark
• On-board crystal and can be set as master or slave to synchronize
with PSTN, depending upon the networking requirement.
• 15-pin
• 5 VDC
• System will provide an 8KHz frame signal for T1 card's
synchronization.
• Compatible with SPI (Serial Peripheral Interface) bus timing.
ISDN Card (T1/PRI Module)
ISDN Card (T1/PRI Module) Details
One (1) T1(1.544Mbps, 24channels) interface
ISDN (T1/PRI) Interface
RJ-45
ISDN (T1/PRI) Card has 9 LEDs on the PCB which indicate alarms of
T1 trunk,
in-use status, and synchronous clock enable status.
ISDN Card (T1/PRI Module) Details (continued on next page)
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