S T B - B P B A
FIGURE 50 STB-B STATION BOARD ASSEMBLY AND WIRING FOR
A POWERFAIL STATION
2.4.11
Call Metering Unit
A
LA LB
TO M.E.
TE LECOM
E X C H A N G E
L I N E
A
LA
L B
T E L E C O M
EXCHANGE
A
B
LA LB
T O M . E .
T E L E C O M
FIGURE 51 CALL METERING UNIT WIRING
+ E
T O
The unit is capable of counting meter pulses for three exchange lines. Terminate the exchange
lines on the CMU before terminating them at the SDF. The CMU derives its power from the main
equipment,
connector
Make connections between CMU+ and
via the SDF to + and respectively, on the CMU. A Telecom metering earth is required to detect
meter pulses and this must be connected to the CMU. (Refer to figure 51).
78
ISSUE 1