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DEFINITY Enterprise Communications Server Release 6
Installation and Test for Compact Modular Cabinets
555-230-128
Issue 3
May 1998
Install and Cable the Cabinets
Page 1-94Install Emergency Transfer Unit and Associated Telephones
1
10. Connect the 808A to the MDF with a B25A or A25B cable. Figure 1-42
shows the connections at the trunk/auxiliary field for a telephone used only
for emergency transfer.
Figure 1-42. Connections for Telephone Used for Emergency Transfer
Figure Notes
1. To network interface circuitry
2. To CO trunk circuit pack
3. To blue or white station distribution field
4. To power transfer unit
5. To control carrier AUX
connector
TC TK LC ST
1M 1m 2M 2m 3M
ALARM MONITORS EM TRANS RELAYPWR 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
123
2822
25
50
1
EMXR
2822
r758580b MMR 042996