Installing and wiring telephones and trunks
224
Installing the Avaya S8700 Media Server with an Avaya G650 Media Gateway
December 2003
Figure 89: Connections for telephone used for emergency transfer
44
Y-BR
TLC5
Tip-PBX Line Port 5
19
BR-Y
RLC5
Ring-PBX Line Port 5
45
Y-S
TST5
Tip-Emergency Terminal 5
20
S-Y
RST5
Ring-Emergency Terminal 5
46
V-BL
COM1
Common 1 Relay Contact
21
BL-V
NO1
Normally Open 1 Contact
47
V-O
NC2
Normally Closed 2 Contact
22
O-V
NC1
Normally Closed 1 Contact
48
V-G
COM2
Common 2 Relay Contact
23
G-V
NO2
Normally Open 2 Contact
49
V-BR
24
BR-V
50
V-S
GRD
Ground from Aux Cable
25
S-V
-48PX
-48V from AUX Cable
Figure notes
1
To Network Interface Circuitry
2
To TN747B (or Equivalent) Central Office
Trunk Circuit Pack
3
To Blue or White Station Distribution Field
4
To Power Transfer Unit
5
To Control Carrier Auxiliary
Connector
Table 29: Pin assignments for 25-pair connector 2 of 2
TC
TK
LC
ST
1M
1m
2M
2m
3M
ALARM MONITORS
EM TRANS RELAY PWR
ACC PWR
3m
3w
TC
TK
LC
ST
TC
TK
LC
ST
TC
TK
LC
ST
TC
TK
LC
ST
C
O
M
1
N
O
1
N
C
2
N
C
1
C
O
M
2
N
O
2
C
O
M
3
N
C
3
G
R
D
-48
V
1
2
3
2822
25
50
1
EMXR
2822
r758580b MMR 042996