Table 8-1. Generic 2 With Universal Modules Protection Matrix; Table 8-2. Loop Ranges For Protected Terminals - Avaya 6424D+M User Manual

TABLE 8-1. Generic 2 with Universal Modules Protection Matrix

Circuit Exposed
Line Packs/ Circuits/
Circuit On-Off Prem
1 T N 7 2 / 8 Yes/Both
2a TN46/16 No/On
2b TN746B/16 No/On
3 TN762B/8 No/On
4a Yes/Both
TN754/8
4 b TN754B/8 Yes/Both
Yes/Both
5 T N 4 7 / 8
6 TN753/8 Yes/Both
7 TN760C/4 Yes/Both
No/On
8 TN763C/4
9 TN735/4 No/On
Yes/Both
10 TN555/1
Yes/Both
11 TN556/12
1 2 TN767/1 Ycs/Both
NOTES:
1. Gas tube may be substituted for carbon block to increase protection and lower maintenance cost.
2. If the DLP protector is provided, then primary protection is required on the network side of the facilities.
3. If the TL31M or channel service unit (CSU) is provided, then primary protection must be provided on the network side of the facilities. The
TN760C cannot be directly connected to exposed facilities.
The TN555 does not have tip and ring connections. It connects directly to the TN767 via a special "Y" cable.
4 .
AT&T 5-pin plug-in protector units and primary protetectors that begin with the number 4 are equipped with heat coils that provide sneak-
5 .
current protection.
6 . Primary and sneak-current protection can be provided simultaneously by using carbon blocks (4BlC), wide-gap gas tubes (4BIE-W). or solid-
state protectors (4C1S). Primary protector with a "4" prefix are preferred but not required. 3B/3C protector series can be used after a thorough
site investigation that determines there is no need for sneak-current protection no chance of a power cross.
7.
The 7500 ISDN-BRI (integrated services digital network-basic rate interface) requires a 4C3S-75 be placed on the switch and a carbon
block on the terminal end.
For TN754 circuit packs, the 4C3S-75 protector is only appropriate for vintage 15.
8 .
Table 8-2, Loop Ranges for Protected Terminals, lists the loop ranges and required protection devices
for the protected terminals for Generic 2 with universal modules.

TABLE 8-2. Loop Ranges for Protected Terminals

Terminal Type
7400
7500
ELECTRICAL PROTECTION: DEFINITY GENERIC 2 WITH UNIVERSAL MODULES
Sneak 5
Term/ Current
T r u n k Protection
Required
Anl Line Yes
Anl Line NA
Anl Line NA
730X- MFAT NA
7 4 0 x - D i g Yes
7 4 0 X - D i g Yes
CO Trk Yes
DID Trk Yes
Tie Trk Yes
NA
Aux
MET NA
ISDN PR1 Yes
750X-lSDN BRI Yes
DS1 Yes
Protectors
Primary & DLP
4C3S-75 & 4B1C
-
Protector
Enhanced
P r i m a r y Secondary
6
Primary
PDP, ITW,
DLP
or 4C3S-75
Yes No NA
NA NA NA
NA NA NA
NA NA NA
Yes PDP or ITW Yes
Yes Yes Y E
Yes No NA
Yes No NA
No NA
Yes
NA NA NA
NA NA NA
Yes NA
NA
Yes 4 C 3 S - 7 5 NA
NA NA
Yes
Range (ft)
26 AWG
24 AWG
5000 4000
1600
1900
8-3
Notes
1
2 , 8
2
1
1
3
4
7
3