ADTRAN 25 manual Appendix C

APPENDIX C:

APPENDIX C:

System Additions or Changes

Additions and changes can be made to the system to support growth or changing needs of the customer. These system changes include: adding voice or data terminals, changing a voice-only connection to a voice/data connection, adding trunks, adding modems, and adding auxiliary equipment.

To handle such changes as these, you may need to add or replace circuit packs (CPs), add a cabinet, add cabling, and add or change a user’s terminal. These procedures are described first; then specific procedures for making the changes listed above are described.

Note: After any changes have been made, save translations to DTU .

Evaluate Cabinet Unit Power Load

Each cabinet can handle a maximum of 80 unit loads of 48-volt power. The unit load for each type of terminal equipment is shown in Table C-A.Before adding a CP or a terminal to an existing system, count the unit loads in the cabinet to ensure that the maximum has not been reached.

Any station/adjunct combination requiring more than two unit loads must be locally powered. When 7300H Series terminals are locally powered, they represent zero load to the switch. (Any CPs not listed do not affect the unit load.)

November 1995 C-1