Nortel Networks 311 사용자 설명서
1076
NTRB21 DTI/PRI/DCH TMDI card
From 50-pin
MDF connector
MDF connector
To DB-15
Signal name
Description
pin 23
pin 9
R
transmit ring to network
pin 25
pin 2
FGND
frame ground
pin 49
pin 3
T1
receive tip from
network
network
pin 24
pin 11
R1
receive ring from
network
network
The connection to the external digital carrier is via a 15 position Male D
type connector.
type connector.
Table 441
DS-1 line interface pinout for NTBK04 cable
DS-1 line interface pinout for NTBK04 cable
From 50-pin
MDF connector
MDF connector
To DB-15
Signal
name
name
Description
pin 48
pin 1
T
transmit tip to network
pin 23
pin 9
R
transmit ring to network
pin 25
pin 2
FGND
frame ground
pin 49
pin 3
T1
receive tip from
network
network
pin 24
pin 11
R1
receive ring from
network
network
The connection to the external digital carrier is through a 15 position Male
D-type connector.
D-type connector.
Table 442
DS-1 line interface pinout for NTBK04 cable
DS-1 line interface pinout for NTBK04 cable
From 50-pin
MDF
connector
MDF
connector
To DB-15
Signal name
Description
pin 48
pin 1
T
transmit tip to
network
network
pin 23
pin 9
R
transmit ring to
network
network
pin 25
pin 2
FGND
frame ground
pin 49
pin 3
T1
receive tip from
network
network
pin 24
pin 11
R1
receive ring from
network
network
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.