Embedded Modules - Mitel MiVoice Business 3300 ICP Troubleshooting Manual

Hardware

3.3 Embedded Modules

Table 10: Embedded Module Troubleshooting
Hardware Symptom
Embedded Embedded
PRI PRI Module
Module. fails to
initialize.
The LEDs
on the
embedded
PRI
(Framer)
module
are off.
The trunks
for the
module are
unassigned.
55
Probable Cause
Module has failed to
initialize because the
link descriptor is not
programmed correctly.
Corrective Action
Check the programming for the
link descriptor that is assigned
to the embedded PRI (Framer)
module:
For T1 only:
• B8ZS Zero Code Suppression:
Yes
• Operation Mode: DSX-1 or
CSU
• CSU Tx Line Build-Out (dB.):
This T1 parameter ensures
reliable operation of the
network. Select from 0, 7.5,
15, or 22.5 dB. Your carrier
can advise you of the correct
setting. The default is 0 dB.
• DSX-1 Line Length (Ft.): 0-133
feet.
• Extended Super Frame: No
• Inverted D channel (DPNSS
only): Yes
For E1 only:
• CRC-4 Enabled: "No" in North
America; "Yes" in Europe
• E1 Line Length (Ft.): 0-133
• E1 Impedance (Ohms): 120
Document Version 1.0
Troubleshooting Guide