
34 Appendix A Working with DID Lines
5. Loosen the contact labelled –48V.
6. Connect the metal prong on the end of the red wire to the –48V contact and tighten the contact
screw. The connection should now look like the following illustration.
Figure A.1 Power Supply Connection
7. Plug the plastic plug on the other end of the power cable into the DC input jack in the fax board
mounting bracket.
8. Turn on the computer.
9. Plug the Tellabs 8012 power supply into the wall socket.
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