Completing Installation and Cable Pinouts
TN464F/GP and TN2464BP Option Settings
140
Installation, Upgrades and Additions for Avaya CMC1 Media Gateways
June 2004
TN464F/GP and TN2464BP Option Settings
The TN464F/GP DS1/E1 Interface - T1/E1 circuit pack interfaces between a 24- or 32-channel Central
Office/ISDN or tie trunk and the TDM bus.
NOTE:
The P designation means the circuit pack’s firmware is programmable. Refer to
Upgrade
Firmware on Programmable Circuit Packs
on page 197 for more information.
Set the switches on the circuit pack to select bit rate and impedance match. See
Table 34
and
Figure 70,
TN464F/GP and TN2464BP Option Settings,
on page 141. If the top switch setting is set to 32 channel,
then set the lower switch setting to either 120 ohms or 75 ohms.
Table 33: TN760E Option Switch Settings and Administration
Installation Situation
Preferred Signaling
Format
E&M/SMPLX
Switch
Prot/Unprot
Switch
Administered
Port
Circumstance
To
System
Far-End
Collocated
DEFINITY
E&M
Type 1
E&M
Type 1
E&M
Unprotected
Type 1
Compatibl
e
Standard
Compatible
Inter-Building
DEFINITY
Protected
Type 1
Protected
Type 1
E&M
Protected
Type 1
Compatibl
e
Standard
Plus
Compatible
Protection
Unit
Collocated
Net
Integrated
E&M
Type 1
Any PBX
E&M
Unprotected
Type 1
Standard
Table 34: Option Switch Settings on TN464F/GP and TN2464BP
120 ohms
Twisted pair
75 ohms
Coaxial requiring 888B adapter
32 Channel
1
1 If the 24/32 channel switch is not set per administration (or vice versa), the
circuit pack alarms and will not be present in the list configuration command.
2.048 Mbps
24 Channel
1
1.544 Mbps