Pri to echo canceller pin assignments, Electromagnetic interference, Table 70 pri-to-echo canceller - pin assignments – Nortel Networks NN43001-301 User Manual
Page 192
192
Echo canceller installation
•
Canceller only: OFF
•
H reset: OFF
•
H hold: OFF
PRI to Echo canceller pin assignments
The echo canceller is controlled by an RS-232 port on the PRI circuit pack.
The following tables give the echo canceller pin assignments, operating
parameters and initialization procedures.
See
Table 70 "PRI-to-Echo canceller - pin assignments" (page 192)
for
PRI-to-Echo canceller pin assignments; refer to
for a PRI-to-Echo-canceller cabling schematic.
Table 70
PRI-to-Echo canceller - pin assignments
Signal
PRI pin
Echo canceller
pin
EIA RS-232-C
circuit
designator
TXD
(Transmitted Data)
5
2
BA
RXD
(Received Data)
2
3
BB
RTS
(Request to Send)
—
4
CC
CTS
(Clear to Send)
—
5
CB
Common Return
(signal ground)
10
7
AB
DCD
(received line signal detector)
1
8
CF
DTR
(data terminal ready)
4
20
CD
Electromagnetic Interference
The Electromagnetic Interference (EMI) filter assembly for PRI is PO643763.
The system meets FCC Part 15, Subpart J, Class A requirements regarding
EMI. In order to accomplish this, the SDI cables must exit the cabinet
through EMI filters on the I/O panel. This procedure depends on the system
cabinet type.
Nortel Communication Server 1000
ISDN Primary Rate Interface Installation and Commissioning
NN43001-301
02.03
Standard
Release 5.5
7 December 2007
Copyright © 2003-2007, Nortel Networks
.