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TD 92022GB

2002-11-13/ Rev. A

Installation Guide
H/U952T Terminal Transmitter

Lift off the screw connectors from the circuit board.

Figure 13. Circuit board replacement.

Press the four holding clips (1) and release the circuit board as shown (2 and 3), see

Install the new circuit board in the case, make sure it clicks into the position.

Remove the SM/FL module from the old circuit board (if any) and install it on the
new circuit board.

Set all switches and jumpers as they were on the old circuit board.

Replace the connectors and the antenna coax.

Check installation according to the System Installation document

Replace the cover.

Содержание H952T

Страница 1: ...TD 92022GB 2002 11 13 Rev A Installation Guide H U952T Terminal Transmitter...

Страница 2: ...g the Transmitter 4 3 4 Wiring Runs 5 3 5 Connection of Buses and Control Equipment 6 3 6 Connection of Supply Voltage 7 3 7 Coax Connection to Antenna 7 3 8 Connection to Slave Transmitter 7 4 Parame...

Страница 3: ...r TNC Modular bus cabling Tools etc required Screwdriver Screws for mounting Multi meter Related Documentation As a complement to this installation guide see also the applicable system installation do...

Страница 4: ...102 Supply voltage J103 For connecting D bus if modular bus cabling is not used and Control Equipment J200 For connecting the Speech and Frequency T952SM FL Lock module Switches SW100 Address selector...

Страница 5: ...ns for mounting the H U952T Figure 3 Mounting dimensions in mm Note To facilitate service after the unit is installed we recommend a free space of about 150 mm above and 50 mm below the unit LEDs LED1...

Страница 6: ...its 1 Remove upper and lower covers Fasten together the lower rectangular covers of adjacent units 1 2 Fasten each unit to the wall with three screws see figure figure 3 on page 3 3 3 Addressing the T...

Страница 7: ...out through the cable duct at the bottom 3 Use the slots at the opening to secure the wiring with cable straps Wiring can be run four ways for connection with other units Figure 7 Four ways of wiring...

Страница 8: ...tions via twisted pairs Figure 9 Connection via twisted pairs Connect the D bus to connector J103 screw 1 and 2 If speech is used see Connection of SP FL bus via twisted pairs on page 11 in Appendix A...

Страница 9: ...the antenna cable and entering the transmitter let the cable form a loop downwards See figure 11 below Figure 11 Preventing water to run along the cable and entering the transmitter For assembly of t...

Страница 10: ...t the channel spacing 4 If there is speech in the system check Subtone frequency default 127 3 Hz When FL frequency locking is used check That frequency locking is enabled with the right reference fre...

Страница 11: ...H U952T Check the other 900 units according to the System Installation document or contact your dealer 5 If T952SM FL module is used Check that T938RM is connected as a reference module if the transmi...

Страница 12: ...shown 2 and 3 see figure 13 on page 10 6 Install the new circuit board in the case make sure it clicks into the position 7 Remove the SM FL module from the old circuit board if any and install it on t...

Страница 13: ...ency Lock module onto the connector J200 on the transmitter board see figure 2 on page 2 Connection of SP FL bus via twisted pairs Note Not needed if the buses are connected to the Terminal Transmitte...

Страница 14: ...ure 15 SP bus connection via twisted pairs Speech Termination If more than one speech transmitter is used in a system only one of the T952SM FL modules can have the speech bus termination resistor R10...

Страница 15: ...ped with a PL259 UHF connector Figure 16 TNC connector and TNC UHF adapter Assemble TNC Coax Connector as follows Figure 17 Assembly of TNC coax connector 1 Cut and strip cable as shown in figure at 1...

Страница 16: ...or as follows Figure 18 Assembly of PL259 coax connector 1 Cut and strip cable as shown in figure at 1 2 Slide coupling ring onto cable and screw connector body onto cable 2 3 Solder braided shield to...