Isdn-Lnk (Isdn-Pri Signaling Link Port) - Avaya S8700 Maintenance Manual

Maintenance-Object Repair Procedures
ISDN-LNK (ISDN-PRI Signaling Link
Port)
MO's Name
(in Alarm Log)
2
ISDN-LNK
ISDN-LNK
1. pp is 24 for 24-channel interfaces and 16 for 32-channel interfaces
2. For additional related information, see
NOTE:
See the figures in the
this chapter for an illustration of the principles described below.
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 TN464C/D UDS1
Interface circuit pack that has a direct interface to the packet bus that carries
D-channel messages to the processor. The associated B channels can use ports
on the same circuit pack or ports on other TN464C/Ds or TN767 DS1 Interface
circuit packs. (The TN722 cannot be used for this application). The B channels
are connected to the TDM Bus.
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
The 32-channel mode is supported only on TN464 series circuit packs and
on G3r V2 systems.
On 24-channel interfaces, the B channels may use any of the first 23 ports. The
signaling link is assigned to the 24
ISDN Trunks (B channels) may use any of ports 1 to 15 and 17 through 31. The
signaling link is assigned to the 16
framing. In NFAS configurations, the 24
packs may be used for B channels. See
Group)'' for further information.
8-970 Issue 1 May 2002
Alarm Level Initial Command to Run
MINOR test port UUCSSpp l
WARNING test port UUCSSpp sh
''UDS1-BD (UDS1 Interface Circuit
''ISDN-SGR (ISDN-PRI Signaling Group)''
th
port. On 32-channel interfaces, the DS1
th
port. The 32
th
1
Full Name of MO
ISDN-PRI Signaling
Link port
ISDN-PRI Signaling
Link port
Pack)''.
nd
channel (port 0) is used for
th
or 16 ports on some of the DS1 circuit
''ISDN-SGR (ISDN-PRI Signaling
section of
555-233-143