Replace the msdl, Procedure 10 replace the msdl card, Procedure 10 – Nortel Networks NN43001-301 User Manual
Page 98: Replace the msdl card
98
MSDL installation for all systems
RS-422-A DCE
o
n
o
n
o
n
o
n
o
n
o
n
o
n
o
n
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
Port 2—SW2
Port 2—SW6
RS-232-D
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
RS-422-A DTE
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
n
o
n
o
n
o
n
o
n
o
n
o
n
o
n
o
n
o
n
RS-422-A DCE
o
n
o
n
o
n
o
n
o
n
o
n
o
n
o
n
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
Port 3—SW1
Port 3—SW5
RS-232-D
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
RS-422-A DTE
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
n
o
n
o
n
o
n
o
n
o
n
o
n
o
n
o
n
o
n
RS-422-A DCE
o
n
o
n
o
n
o
n
o
n
o
n
o
n
o
n
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
o
ff
Replace the MSDL
Replacement procedures for the MSDL card are the same for all Large
Systems. Use
Procedure 10 "Replace the MSDL card" (page 98)
below.
Procedure 10
Replace the MSDL card
Step
Action
1
Disable the MSDL card in LD 96.
2
Disconnect MSDL to PRI cables.
3
Remove the faulty MSDL card.
4
Unpack and inspect the new MSDL card.
5
Set the MSDL switch settings to correspond to
and
Figure 40 "MSDL card layout" (page
6
Insert the new MSDL card into the selected card slot of the module
following the card guides.
7
Observe the red LED on the MSDL faceplate. If it turns on, flashes
three times, and stays on continuously, the MSDL is operating
correctly but is not yet enabled.
If the LED turns on and stays on continuously without flashing
three times, the card can be defective. Go to step 11.
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
.