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Table of Contents
Summary of Contents for Zenitel H952T
- Page 1 TD 92022GB Installation Guide H/U952T Terminal Transmitter 2002-11-13/ Rev. A...
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Page 2: Table Of Contents
Installation Guide TD 92022GB H/U952T Terminal Transmitter Contents 1 General ............................1 2 Board Description ........................2 3 Installation ........................... 3 3.1 Mounting ..........................3 3.2 Mounting together with Other Units ..................4 3.3 Addressing the Transmitter ..................... 4 3.4 Wiring Runs ........................... 5 3.5 Connection of Buses and Control Equipment ................. -
Page 3: General
Figure 1. Terminal Transmitter H/U952T. H/U952T Terminal Transmitter is used in the On-site Paging- and Personal Security Systems. The transmitter operates in both UHF and HF frequency bands. H952T U952T Supply voltage: 12.5 V DC ± 10% 12.5 V DC ± 10% Max. -
Page 4: Board Description
Installation Guide TD 92022GB H/U952T Terminal Transmitter Board Description P400 LED100 C444 (U952T) L401 (H952T) L301 LED302 LED301 LED300 LED201 J102 LED302 LED301 LED300 LED201 J200 SW200 IC101 SW100 J101 J103 J100 Figure 2. H/U952T Circuit board. Connectors J100, J101 For connecting D-, and SP-bus via modular bus cabling. -
Page 5: Installation
C444 Capacitor, for adjustment of VCO frequency. Note: Only U952T L401 Inductance coil, for adjustment of VCO frequency. Note: Only H952T. Installation The unit should be placed in a dry environment. A temperature between 0 and +40°C is preferred. The transmitter will operate in the temp range -15 up to +55°C. The transmitter can be installed alone or together with other system units using the modular bus cabling or twisted-pair wiring. -
Page 6: Mounting Together With Other Units
Installation Guide TD 92022GB H/U952T Terminal Transmitter Use a screwdriver or similar to release the cover by applying a light pressure to the two snap catches (1) and remove the cover (2). Figure 4. Releasing the cover. Note: The internal metal shield should not be opened. Mounting together with Other Units Figure 5. -
Page 7: Wiring Runs
Installation Guide TD 92022GB H/U952T Terminal Transmitter Wiring Runs The plastic partition (shaded in the illustration) is scored to facilitate breaking at convenient intervals. slots Figure 6. Scored plastic partition for breaking. Use pliers to break off a suitable section. Run the wiring out through the cable duct at the bottom. -
Page 8: Connection Of Buses And Control Equipment
Installation Guide TD 92022GB H/U952T Terminal Transmitter 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 J100 + J101 Pin 1 Pin 8... -
Page 9: Connection Of Supply Voltage
Installation Guide TD 92022GB H/U952T Terminal Transmitter Connection of Supply Voltage • Connect supply voltage to connector J102 screw 1 and 2. See also the System Installation document, under Power Supply. H/U952T J102 +12V Supply voltage-in +12V Supply voltage-out Figure 10. Power supply connector. Coax Connection to Antenna •... -
Page 10: Parameter Settings
When FOM or SFO is used this has to be enabled with the right offset. If the transmitter is to be used with old central software that do not support U/H952T (specified in the parameter list), set the transmitter to act as an U/H950T. -
Page 11: Field Adjustment
Installation Guide TD 92022GB H/U952T Terminal Transmitter Energize all units in the 900-system. Function indicator LED100 on the transmitter should light red for about 1 second and then change to a flashing green. If it continues to indicate steady red, check that supply voltage is 12.5 Vdc ± 10%. Flashing red indicates a program fault, parameter fault, or a faulty 125 MHz oscillator. - Page 12 Installation Guide TD 92022GB 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 figure 13 on page 10.
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Page 13: Appendix A: Installation Of T952Sm/Fl Speech And Frequency Lock Module
Installation Guide TD 92022GB H/U952T Terminal Transmitter Appendix A: Installation of T952SM/FL Speech and Frequency Lock module Board description 952SM/FL LED100 R202 R203 R100 R211 R212 J100 2500 3125 Figure 14. Circuit Board for 952SM/FL. Connections, etc. J100 Screw terminal, for speech bus (SP-bus) if system bus cabling is not used. - Page 14 Installation Guide TD 92022GB H/U952T Terminal Transmitter • Connect SP-bus to connector J100. T952SM/FL J100 Connection to speech bus Figure 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 (R100) connected.
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Page 15: Appendix B: Coaxial Connectors
Installation Guide TD 92022GB H/U952T Terminal Transmitter Appendix B: Coaxial Connectors When connecting the antenna cable to the transmitter the TNC coax connector for soldering is preferable to use, but an TNC-UHF adapter can be ordered from your supplier if for example the antenna cable already is equipped with a PL259 (UHF) connector. TNC Angle connector TNC - UHF adapter Figure 16. - Page 16 Installation Guide TD 92022GB H/U952T Terminal Transmitter IMPORTANT: Overheating during soldering may damage insulation between inner conductor and shield resulting in negative effects on cable. Check with ohmmeter for short circuit between connector body and inner conductor. Note: If the cable is connected to a dc-grounded antenna, disconnect it before making this check.