PairGain PG-Flex, Manual

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Installing the Central Office Terminal Equipment
37
Installing the Central Office Terminal Equipment
Follow the steps in Table 12 in the presented order to install PG-Flex central office terminal
equipment.
These installation procedures are recommendations. Local practices, if conflicting, should take
precedence. PairGain practices, where indicated, provide detailed instructions for completing
these steps. These should be followed but the sequence may be altered where local needs dictate.
The following procedures are for the 23" COT shelf. For information not covered in this
document, refer to the applicable PairGain technical practice.
Table 12. Installing Central Office Terminal Equipment
Steps Go To Comments
1 “Mount the COT Shelf” page 39 Local policy determines the sequence of terminal
installation and size capacity of the shelf.
2
“Wire Power to the Shelf” page 40 Do NOT fuse the power source at this time. Use
local grounding plan.
3 “Connect the HDSL Lines” page 42 Use local practices to resolve HDSL trouble.
4
“Connect Bypass Pairs” page 43 Local policy determines testing strategy, so this is an
optional step.
5 “Connect the Alarms” page 45 Local policy indicates termination points for alarm
leads.
6
“Connect the Composite Clock” page 46 This is required only when ISDN channel units are
installed. A building integrated timing supply
(BITS) or equivalent clock source is recommended.
7 “Connect the Subscriber Lines” page 47 Local policy indicates distribution points and
protection steps to be taken.
8
“Auxiliary Power Pairs” page 48 Local policy indicates distribution points and
protection steps to be taken (> 200 Vdc is present on
the power pairs).
9 “Power-Up the System” page 49 Insert fuse in the central office power source. The
fuse should not operate.
10
“Verify System Voltages” page 49 Check for appropriate battery and ground voltages.
11 “Install the Alarm Unit or the PGTC” page 50
Either an Alarm Unit or PGTC Interface Unit
can be used but not both.
This is not required for service provisioning. Local
policy determines the appropriate alarm reporting and
line testing strategy. Only one alarm unit or PGTC is
required per COT shelf (supports up to 4 systems).