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ASCOM H952T - User Manual

ASCOM H952T
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TD 92022EN
3 July 2013 / Ver. G
Installation Guide
H/U952T Terminal Transmitter
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ASCOM H952T Specifications

General IconGeneral
BrandASCOM
ModelH952T
CategoryTransmitter
LanguageEnglish

Summary

General

Regulatory Compliance Statements (EU;EFTA)

Declares compliance with R&TTE Directive 1999/5/EC, discussing frequency rules and licensing requirements.

Regulatory Compliance Statements (USA)

FCC compliance for Class B digital device, covering interference, operation conditions, and modifications.

Board Description

Circuit Board Connectors

Details the function of connectors J100, J101, J102, J103, and J200 on the unit's circuit board.

Switches and LEDs

Describes switches SW100, SW200 and indicator LEDs (LED100, LED201, etc.) on the circuit board.

Flash PROM and Adjustable Components

Covers program memory IC101 and adjustable components like potentiometers and coils.

Installation

Mounting Instructions

Guidelines for mounting the unit vertically, including dimensions and recommended spacing for service.

Opening the Housing and Unit Installation

Procedure for releasing the cover and fastening units together or to a wall.

Wiring Runs

Describes three methods for routing cables from the unit, with warnings about openings.

Connecting Buses and Control Equipment

Details connecting data/speech buses via modular cabling or twisted-pairs and control equipment.

Supply Voltage and Addressing

Instructions for connecting power supply, including fuse recommendations, and setting the unit's address.

Coax Connection to Antenna

Guidance on connecting the antenna coax cable, preventing water ingress, and isolation methods.

Parameter Settings

Installation Test Procedure

Field Adjustment Notes

States that reference frequency, VCO frequency, and output power are factory-set.

Circuit Board Replacement

Document History

Appendix A: Installation of T952 SM;FL Module

SP;FL Bus Connection via Twisted-Pairs

Explains how to connect the SP-bus to the module using twisted-pair cables.

Speech Termination Requirements

Details rules for speech bus termination resistor (R100) when using multiple speech transmitters.

Appendix B: Coaxial Connectors

TNC Coax Connector Assembly

Instructions for assembling TNC coax connectors, including parts, dimensions, and soldering.

PL259 Coax Connector Assembly

Instructions for assembling PL259 (UHF) coax connectors, including cable preparation and soldering.

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