Lucent Technologies Release 6 用户手册
DEFINITY Enterprise Communications Server Release 6
Installation and Test for Multi-Carrier Cabinets
Installation and Test for Multi-Carrier Cabinets
555-230-112
Issue 5
May 1998
Install and Wire Telephones and Other Equipment
Page 5-42
Emergency Transfer Units and Associated Telephones
5
Figure 5-19
shows the connections at the trunk/auxiliary field for a telephone
used for emergency transfer as well as a normal extension.
Figure 5-19.
Connections for Telephone Used for Emergency Transfer and as
Normal Extension
Figure Notes
1. To Network Interface Facility
2. To Blue or White Station Distribution
Field
3. To TN742, TN746B, or TN769 (or
Equivalent) Analog Line Circuit Pack
4. To TN747 (or Equivalent) Central
Office Trunk Circuit Pack
5. To Power Transfer Unit
6. To Control Carrier AUX
Connector
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
O
M
1
N
O
1
O
1
N
C
2
C
2
N
C
1
C
1
C
O
M
2
O
M
2
N
O
2
O
2
C
O
M
3
O
M
3
N
C
3
C
3
G
R
D
R
D
-48
V
2820
10
35
35
EMXR
ST
ST
7
5
7
6
8
3
4
r758582b MMR 042996