GROUNDING
REQUIREMENTS
WIRE LENGTH
LIMITATIONS
●
Frequency range.
60 Hz +/- 1 percent
●
Max. current.
3 amperes per power supply
●
Max. power use.
225 watts per power supply
The system must be connected to a properly grounded ac
outlet. See page 2-5, “System Grounding Requirements,”
for more information.
NOTE:
If Modular Processor Data Modules, Modular
Trunk Data Modules, or moderns are to be
installed at the control unit location, additional
grounded ac outlets will be needed.
Wires connected to the control unit should consist of a
single continuous run, i.e., without extension cords or
other splices, and should meet these specifications:
Power cord. The power cord must be less than 6 feet,
and must be connected to a properly grounded ac
outlet that is not switch-controlled.
Incoming lines. The distance from the network
interface provided by the local telephone company for
incoming lines must be spanned within one cord length
(generally 25 feet or less).
Jack field. The distance to the jack field mounted to
the left of the carrier must be within cord length.
Station. Each voice terminal
must be within 1000 feet
of the control unit.
WARNING: If a voice terminal is used for In-Range,
Out-of-Building (IROB) applications, IROB
protectors are required. See “IROB Protectors” on
page 2-126 for more information.
Preinstallation Requirements 2-3
Summary of Contents for administration and
Page 40: ...FIGURE 1 9 System architecture Theory of Operation 1 37 ...
Page 175: ...Top cover Front cover FIGURE 2 27 Control unit covers Testing the System 2 107 ...
Page 211: ...FIGURE 3 I A MERLIN II System Display Console The Administrator Attendant Console 3 3 ...
Page 213: ... FIGURE 3 2 A BIS 34D Console The Administrator Attendant Console 3 5 ...
Page 331: ...General Tests 4 55 Reaming the Control Unit 4 55 Testing Outside Lines 4 56 ...