Installation and configuration 207
—End—
The backplane connector is arranged as an 80-row by 2-column arrayof
pins. Table97 "Lineside T1 card - backplane pinouts" (page 207) shows the
I/O pin designations for the backplaneconnector and the 25-pair Amphenol
connector from the I/O panel. Although the connections from the I/O panel
only use 14 of the available 50-pins,the remaining pins are reser vedand
cannot be used for other signaling transmissions.
The information in Table97 "Lineside T1 card - backplane pinouts" (page
207) is provided as a reference and diagnostic aid at the backplane, since
the cabling arrangement can vary at the I/O panel. See Communication
Server 1000M and Meridian 1 Large System Installation and Configuration
(NN43021-310) for cable pinout information forthe I/O panel.
Table 9 7
Lineside T1 card - backplane pinouts
Backplane
Connector Pin I/O Panel
Connector Pin Signal
12A 1T1 Tip, Receive Data
12B 26 T1 Ring, Receive Data
13A 2T1 Tip, Transmit Data
13B 27 T1 Ring, Transmit Data
14A 3Alarm out, Normally open
14B 28 Alarm out, Common
15A 4Alarm out, Normally closed
15B 29 No Connection
16A 5No Connection
16B 30 Away from MMI terminal, Receive Data
17A 6Awayfrom MMI terminal, TransmitData
17B 31 Towards MMI terminal, Transmit Data
18A 7Towards MMI terminal, Receive Data
18B 32 Daisy-chain Control 2
19A 8Daisy-chain Control 1
19B 33 Ground
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23May 2008
Copyright© 2003-2008, Nor tel Networks
.