2-16
Equipment
AN2016 Cabinet User Guide Rel 1.0 Standard May 1999
Note: Maintain at least the minimum bend radius 3.0 in. (76mm) for the
optical fiber cable.
Surge protection center and termination compartment
The outside plant (OSP) surge protection center and termination compartment
provide the interface between the electronics equipment and the OSP cables
(see Figure 2-10).
VF, HF, miscellaneous and ground cabling enters the SPC and termination
compartment by way of conduit holes located in the bottom of the
compartment.
The SPC and termination compartment is a fully enclosed compartment that
houses the:
• VF termination block
• DS1 termination block
• VF protector modules
• DS1 protector modules
• ground bar
SPC and termination compartment equipment
The SPC and termination compartment provides equipment and options for
lightning protection and for terminating the VF and DS1 cable pairs that enter
the cabinet.
VF and DS1 termination is provided by the 3M 4005 connector system on the
field side and by the specified AMP 50 pin connector on the equipment side.
There are four quad panels on the sides of the SPC and termination
compartment (see Figure 2-10). Each quad panel accommodates four 100-pair
R325 blocks for VF protection. At the top, there are four 50-pair R305 blocks
that provide digital protection. Both R325 blocks and R305 blocks
accommodate standard 5-pin protection modules.
Note: To accommodate spacing restriction, there are two quad panels in
the AC compartment. One quad panel accommodates four 100-pair 325
blocks and the other has three 100-pair 325 blocks (see Figure 2-9).
Ground bar
A ground bar within the compartment connects to the customer preferred earth
ground system as described in Procedure 3-9, “Connecting the earth ground to
the cabinet”. The ground bar serves as the connection point for the OSP cable
sheathing.
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