Avaya DEFINITY Installation And Test page 62

Hardware Installation
146E
RXT 1
To
RXT 2
RC/Cross- Equipment
Protector 1
Connect
(see Note 2)
TXT 3
(see
TXR 6
Note 5)
(see Note 1)
NOTES:
1. Both primary protectors and the 146E secondary protector must be connected to building ground in accordance
with local and state fire/building codes. In no case should a wire smaller than 14 AWG be used.
2. Use Protector-1 of the 146E secondary protector. Protector-2 cannot be used.
3. Choice of primary protector is determined by local safety codes and procedures.
4. 146E must be used on both ends of the line; otherwise, an incorrect line reversal will make the link uncooperative.
5. The TN789 RC terminal assignments are provided in Table 3-4.
6. TXT and TXR should be assigned as a pair; likewise, RXT and RXR should be assigned as a pair.
7. 1151A1 (without battery backup) and 1151A2 (with battery backup) must be in the same building as the WFB.
8. Ordering information for the 48V power supply and the secondary protector is provided in Table 3-5.
Figure 3-11. DWBS Lightning Protection for IROB WFB.
Table 3-4. RC Terminal Assignments for an IROB WFB
WFB
A
B
3-28 Issue 6 September 2001
Primary Primary
Protection Protection
8 RXT RXT
7 RXR RXR
(see Note 3) (see Note 3)
6 TXT TXT
3 TXR TXR
(see Note 1)
Out-of-
Building Span
(see Notes 4 and 8)
Function Backplane
Transmit Tip 104 (UTIPA)
Transmit Ring 004 (UTRNGA)
Receive Tip 103 (URTIPA)
Receive Ring 003 (URRNGA)
Transmit Tip 107 (UTTIPB)
Transmit Ring 007 (URRNGB)
Receive Tip 106 (URTIPB)
Receive Ring 006 (URRNGB)
1151A1 or
146E
RXT 8 1 RXT 1
RXR 7 2 RXR 2
Line
Protector 1
(see Note 2)
TXT 6 3 TXT 3
TXR 3 6 TXR 6
(see Note 1) (see Note 1)
117VAC
50-Pin
Connector
28
03
27
02
31
06
30
05
1151A2
1 RXT 1
Line
2 RXT 2
Phone 7 -48 7
8 GND 8 WFB
3 TXT 3
6 TXR 6
Modular
Jack
3
6
1
2
3
6
1
2