However, if there is a power demand of over 45 unit loads
on one Power Supply Module, an Auxiliay Power Unit is
generally required. This will support an additional 20 unit
loads.
If one or more of the following conditions exist, the
system may need an Auxiliary Power Unit:
●
●
●
●
The maximum number of voice terminals are
connected to the system.
Several voice terminals have accessories and the voice
terminals do not have Voice Terminal Power Supply
Units.
There are long wiring runs between the control unit
and the voice terminals.
The lights on some of the voice terminals become dim
or go out altogether when many employees use their
voice terminals simultaneously.
NOTE:
Only one Auxiliary Power Unit can be connected
to a carrier.
To determine the number of unit loads for each Power
Supply Module on each carrier, determine the types of
modules and types of voice terminals connected to them.
Then see Table 2-8 on page 2-59 for the unit load
requirements of each voice terminal and accessory. Add
the number of unit loads together. If the total on any
carrier exceeds 45, install an Auxiliary Power Unit.
See the equipment supplier for a complete list of power
accessories.
Adding Accessories 2-123
Содержание administration and
Страница 1: ...AT T 518 600 016 MERLIN II COMMUNICATIONS SYSTEM Installation Administration and Maintenance Manual ...
Страница 40: ...FIGURE 1 9 System architecture Theory of Operation 1 37 ...
Страница 175: ...Top cover Front cover FIGURE 2 27 Control unit covers Testing the System 2 107 ...
Страница 177: ...Top cover E m p t y m o d u l e FIGURE 2 28 Installing the control unit top cover Testing the System 2 109 ...
Страница 179: ...Front cover E m p t y module FIGURE 2 29 Installing the control unit front cover Testing the System 2 111 ...
Страница 211: ...FIGURE 3 I A MERLIN II System Display Console The Administrator Attendant Console 3 3 ...
Страница 213: ... FIGURE 3 2 A BIS 34D Console The Administrator Attendant Console 3 5 ...
Страница 217: ...1 1 FIGURE 3 3 Administration Menu for MERLIN II System Release 3 The Administrator Attendant Console 3 9 ...
Страница 218: ...t FIGURE 3 4 Administration Menu for MERIJN II System with Feature Module 2 3 10 The Administrator Attendant Console ...
Страница 331: ...General Tests 4 55 Reaming the Control Unit 4 55 Testing Outside Lines 4 56 ...
Страница 389: ...Section 5 Ordering Information Ordering Information 5 1 Product Listing 5 1 Ordering Information 5 1 ...