Appendix A
TDD Detector Rack Installation
Equipment Needed:
Screwdriver
Two 50-pin, male, micro-ribbon connectors
Procedure:
1.
Install the Ultratec TDD Detector Rack Enclosure in the Telephone
Communications Rack where desired. Position the 12VDC 10 Amp
power supply in the rack or close enough to it so that the 9-ft. power
cable can reach the TDD Detector Rack enclosure. Do not connect
the power cable to the TDD Detector rack or plug the power supply
into the 115-VAC power outlet.
2.
Remove all the cards from the TDD Detector Rack Enclosure by
unscrewing the 2 wing bolts, removing the restraining bar and then
pulling the cards out one at a time. Be careful of the TDD Detector
cards. They are static sensitive, and all precautions for static
sensitive electronic printed circuit boards should be observed. Note
the orientation of the cards before removing them in order to
correctly reinstall them later.
3.
Set the Auto/Manual switch on the back of the TDD Detector Rack
Enclosure to the desired position.
4.
Using a screwdriver, connect the 2 conductor power cable to the TDD
Detector Rack Enclosure. Be sure to Connect the +V (marked on the
cable end) to the +V terminal and the -V conductor to the -V
terminal on the back of the TDD Detector Rack Enclosure. CAUTION:
Connecting the power supply to the TDD Detector Rack Enclosure
with the wrong polarity may cause harm to the TDD Detector cards
when installed.
5.
Plug in one of the TDD Detector cards supplied with the TDD
Detector Rack Enclosure in Card Slot #1.
6.
Plug the power cord from the 12 VDC 10 Amp power supply into the
115 VAC power outlet and press the reset (Black) button for Card #1.
The Power LED should be glowing brightly and no other LEDs should
be on. (If the Rack is set for Auto mode the Auto LED will also be
on.)
