D-Channel Parameter Downloading - Nortel Communication Server 1000S Installation And Configuration Manual

Table 27
D-channel port address switch settings for PRI (Part 2 of 2)
Port Number
2
4
6
8
10
12
14

D-channel parameter downloading

2 Off
5 Off
7 Off
9 On
11 On
13 On
15 On
The system software automatically downloads new parameters to each
D-channel Interface (DCHI) circuit card upon SYSLOAD. When this occurs,
the D-channel is temporarily disabled and then automatically reenabled.
Three situations require manual disabling and enabling of each DCHI to
ensure parameter downloading:
• Performing a parallel load and switching over to the second CPU
• Following an alarm condition for the T1 loop carrying the D-channel (but
the D-channel is still operational)
• Following SYSLOAD when using ISDN Signaling Link (ISL)
ISDN Primary Rate Interface
DCH installation
Port Address Switch Settings
Off
On
On
Off
Off
On
On
Installation and Configuration
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On Off
Off Off
On Off
Off Off
On Off
Off Off
On Off