Hardware Error Log Entries And Test To Clear Values - Avaya G250 Maintenance Manual

Avaya Communication Manager controlled maintenance
The ISDN-PRI interface uses out-of-band signaling (as opposed to robbed-bit, in-band
signaling) to transmit control messages between two endpoints. User information channels
carry digitized voice and digital data and are known as bearer channels (B-channels).
B-channels are assigned to DS1 ISDN trunks or PRI endpoints. Call control signaling for the
B-channels is combined and carried over the separate ISDN-PRI Signaling Link Port D-channel.
The ISDN-PRI Signaling Link Port (ISDN-LNK) is a port on a MM710, which has a direct
interface to the packet bus which carries D-channel messages to the processor. The associated
B-channels can use ports on the same media module or ports on other MM710s.
Two types of DS1 interfaces exist:
24 DS0 channels on a 1.544 Mbps link
●
31 DS0 channels + 1 framing channel on a 2.048 Mbps link
●
On 24-channel interfaces, the B-channels may use any of the first 23 ports. The signaling link is
assigned to the 24th port. On 32-channel interfaces, the DS1 ISDN Trunks (B-channels) may
use any of ports 1 to 15 and 17 through 31. The signaling link is assigned to the 16th port. The
32nd channel (port 0) is used for framing. In NFAS configurations, the 24th or 16th ports on
some of the DS1 media modules may be used for B-channels. Refer to ISDN-SGR for further
information.
A problem with the ISDN-LNK will have an effect on all of the associated B-channels since
without it no call control information can be conveyed to the far-end switch or terminal adapter.
Stable calls may remain operational, but no new calls can be made. The ISDN-LNK in turn
depends on the MM710 it resides on which provides the link to the processor. If there are
problems with the ISDN-LNK, also investigate the MM710 Interface media module (MG-DS1).

Hardware Error Log Entries and Test to Clear Values

Table 74: ISDN-PRI Signaling Link Port Error Log Entries
Error Aux
Type Data
0* 0
18 (a) 0
130 (b)
1537 (c) 46210
1793 (d)
3841 (f) 46211
166 Maintenance for the Avaya G250 and Avaya G350 Media Gateways
Associated Test
Any
busyout port
GGGVSpp**
None
Alarm On/Off
Level Board
Any Any
WARNING OFF
WARNING ON
WARNING OFF
Test to Clear Value
test port GGGVSpp**
release port
GGGVSpp**
test port GGGVSpp**
test board GGGVS l
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