AT&T System 25 - Manual (Page 83)

INSTALLATION
Consideration should be given to installing secondary protection on each
out-of-building facility connected to the TAE if any of the following conditions
e x i s t :
●
The service entrance (protector block) ground is not properly
installed (bonded to building ground, for example).
●
The local telephone company does not permit access to the
protector block.
● High-voltage surge protection is not provided.
Install the CBC as follows:
1. Connect one end of the CBC to the ground point at the network
i n t e r f a c e .
2. Wrap the CBC loosely around the cable from the network interface
to the TAE and then around a splitter cable to the cabinet. If
possible, tie wrap the CBC to the cables.
3. Connect the end of the CBC to the ground block on Cabinet 1. See
Figure 2-13.
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