Zenitel H952T Installation Manual Download Page 8

TD 92022GB

2002-11-13/ Rev. A

Installation Guide
H/U952T Terminal Transmitter

6

3.5

Connection of Buses and Control Equipment

Buses are connected either via modular bus cabling or twisted-pairs. 

Note: 

Data buses are polarized! Use only twisted-pairs for separate wiring!

Bus Connections via Modular Bus Cabling

Figure 8. Modular bus cable pins.

Note that only D- and SP-bus are used by the transmitter. When the modular bus cable is 
used, no further connection of the SP-bus to T952SM/FL Speech and Frequency Lock 
module is required. 

• Connect the modular bus cabling to connectors J100 and J101, see 

figure 2

 on page 2.

Bus Connections 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

“.

Connection of Control Equipment

• Connect control of H/U954 Power Amplifier* to J103 screw 3 and 5, 

and 

H/U950SC 

Output Power Surveillance Module* to J103 screw 4 and 5, see 

figure 9

 above.

*See also the installation guides for the respective units.

Note: 

H/U989M Monitor Receiver (phased out product) is connected in the same ways as 

H/U950SC.

Pin 1

234567

Pin 8

Pin

1
2
3
4
5
6
7
8

Signal

A1 data bus
A2 data bus
B1 data bus
B1 data bus
D1 data bus
D2 data bus
SP1 speech bus
SP2 speech bus

J100 + J101

J103

1   D1

2   D2

3   Booster control

4   Monitor input

5   GND

H/U952T

D-bus, connection
to a Central Unit 

Control of H/U954

H/U950SC

Summary of Contents for H952T

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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