ADTRAN 25 manual Connect Coupled Bonding Conductor CBC, Line Compensation/Equalization

INSTALLATION

Connect the CSU

The CSU can be powered by the line or from a locally provided -48 V dc power supply. Figure 2-25 shows the connections for connecting the CSU. The 48 V and GRD leads are optional according to how the CSU is powered.

H 6 0 0 3 0 7 , 0 2

C O N N E C T O R

CABLE (NOTE)

NOTE : FOR DISTANCES OVER 50 FEET ( 15.2 M)

USE C6E CONNECTOR CABLE(S) BETWEEN H600 307,02 CONNECTOR CABLE AND DS1

TRUNK CIRCUIT PACK .

T O L O C A L L Y

P R O V I D E D - 4 8 V P O W E R S U P P L Y

Figure 2-25. CSU Connections

Line Compensation/Equalization

Determine the cable distance of the line, either to the line termination or “phantom” midpoint of a direct connection. Refer to the System 25 Administration Manual (555-540-650) for instructions on setting the line e q u a l i z a t i o n .

Connect Coupled Bonding Conductor (CBC)

Each network interface (RJ48X) is associated with a service entrance (protector block) ground. A CBC should be connected to this ground. If the local telephone company has not run a CBC up to the network interface, you should run it yourself. Use #12, #14, or #16 AWG wire. Start the CBC at the protector block ground, and run it as close as possible to the facilities cable. If possible, tie wrap the CBC to the facilities cable. Do not use spare pairs in the telephone company cable for this purpose.

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