Nortel Networks 311 사용자 설명서
478
NT7D16 Data Access card
•
If the DAC is used to call out through modem pooling, where the modem
pool consists of dumb modems connected to QMT8 SADM or QMT12
V.35 SADM, the DAC port should be configured with a secondary DN,
which has a single appearance.
pool consists of dumb modems connected to QMT8 SADM or QMT12
V.35 SADM, the DAC port should be configured with a secondary DN,
which has a single appearance.
•
The Virtual keys must be assigned as shown in
.
Table 186
Virtual key assignments
Virtual key assignments
Key number
Feature key
SL-1
SL-100
Use
Data DN
0
0
Required
Secondary DN
1
1
Required for manual
modem pooling
modem pooling
Call Transfer
2
—
Required for manual
modem pooling
modem pooling
Auto Dial
3
2
Required for Hotline and VLL
Ring Again
4
6
Optional
Speed Call
5
3
Optional
Display
6
—
Required
Make Set Busy
7
7
Optional
Power supply
Be sure that all power requirements are met before installing the DAC.
Operation may be affected by improper power and environmental conditions.
Operation may be affected by improper power and environmental conditions.
EIA signals supported
The DAC supports a subset of the standard signals. Only 8 leads can be
brought through the backplane connector for each port, totaling 48 leads
for each card slot.
brought through the backplane connector for each port, totaling 48 leads
for each card slot.
lists the EIA signals supported on this card.
Table 187
EIA signals supported (RS-232-C)
EIA signals supported (RS-232-C)
EIA
DB-25
Pin
Pin
Signal
abbreviation
abbreviation
Description
DCE
mode
mode
DTE
mode
mode
BA
2
TD
Transmitted Data
In
Out
BB
3
RD
Received Data
Out
In
CB
5
CTS
Clear To Send
Out
In
Note: RS-422 leads supported are: Tx (transmit) and Rx (receive).
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.