AT&T System 25 - Manual (Page 91)

NSTALLATION
Prepare Carrier Loading Labels
As you connect the port CPs in each cabinet to the SIP, list the connections
on the Carrier Loading label. This label is mounted on the inside of the front
cover of the cabinet. (See Figure 2-29.) Keep track of –48 volt power usage
so that the power supply is not overloaded.
1.
2.
3.
4.
Enter, the CP type under the appropriate slot number.
For each port, enter the terminal type and the unit load, referring to
the Unit Load by Station Set Type label attached near the Carrier
Loading label. (This information is also contained in Appendix C of
this manual.) No port can have a unit load greater than 2.
When you have made entries for all - the ports of a CP, calculate the
total unit load for that CP and enter the calculation in the
appropriately marked square.
When you have made and documented all the connections for a
cabinet, check the total unit load to make sure that it does not
exceed the maximum of 80. (See Appendix C for more information
on evaluating unit load.)
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