Performing a Visual Inspection
Installation For internal distribution only
A31003-K1250-S100-12-7619
4-48 HiPath 1100, Service Manual
With 2-wire analog telephone sets (A, B) there is no problem in the event of a mo-
mentaryshort circuit.
The maximum distance for installing a system telephone using a two-pair cable with
a 0.4 mm
2
copper wire is 0.3 miles (500 meters). For Standard Telephones the max-
imum distance is 1.5 miles (2,500 meters).
4.16 Performing a Visual Inspection
Introduction
Before starting up the system, perform a visual inspection of all hardware, cables and
power supply. This procedure should be performed with the entire system turned
OFF.
Visual Inspection Procedure
System telephones are powered through the C and D wires. Take the necessary
precautions to avoid short circuits at the interconnect block.
If a short circuit occurs between wires C and D, the interface’s protection will take
the extension out of service. To activate the extension again, remove the short, dis-
connect the system telephone then reconnect it. The interface should start operat-
ing normally now.
Warning
Before starting to work on the HiPath 1190, make sure the system is grounded and
disconnected from all power sources.
Follow all guidelines to protect the system from electrostatic discharge (see “Safety
Information: Caution” on page 1-5).
Table 4-8 Visual Inspection Procedure
Step Procedure Aids/
Notes
Measure
1. Compare the installation position
of modules on the slots against
the installation diagram.
Module Installation
Diagram.
Make the appropriate cor-
rections
to the modules and notify
the appropriate person.
2. Check to see that all modules are
securely and properly attached.
See “System Data”
on page 2-1.
Attach or secure modules
as needed.
3. Check the network’s line voltage. Multimeter. Verify voltage at power
source.
!
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