Nortel Networks Circuit Card 311 - Manual (Page 479)

Installing the Data Access card 479
EIA
DB-25
Pin Signal
abbreviation
Description
DCE
mode DTE
mode
CC 6 DSR Data Set Ready Out In
AB 7 GND Signal Ground — —
CF 8 DCD Carrier Detect Out In
CD 20 DTR Data Terminal Ready In Out
CE 22 RI Ring Indicator Out In
Note: RS-422 leads supported are: Tx (transmit) and Rx (receive).
Environmental
The DAC functions fully when operating within the following specified
conditions. See
Table 188 "DAC environmental specifications" (page 479)
Table 188
DAC environmental specifications
Specification Operating Storage
Ambient temperature 0 to 60 degrees C 40 to 70 degrees C
Humidity 5% to 95% 5% to 95%
Reliability
The DAC has a predicted mean time between failure (MTBF) of 8 years at
45 degrees Celsius. The mean time to repair (MTTR) is 1 hour.
Installing the Data Access card
Cabinet system
The DAC is fully supported in any card slot in either the main or expansion
cabinet without any hardware modification. Insert the DAC into any available
card slot and secure it in place using the locklatches.
To cable out the DAC, run a standard 25-pair cable to the cross connect, or
use one of the following breakout cables in conjunction with an Amphenol
50-pin female-to-female gender converter:
• QCAD318A50-pin Amphenol to 6 female DB25 connectors
• QCAD319A50-pin Amphenol to 6 male DB25 connectors
Note: For Cabinet system, the format to be used in response to the
"TN" prompt must be one of the following:
CC 00 00 UUCC - Card Slot
or CC UUUU - Unit Number
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright © 2003-2008, Nortel Networks
.