Ascom 952T series transmitter

The Ascom 952T series terminal transmitter is a central part of the Ascom On-site Paging (OSP) and Personal Security (PSS) systems.  It is available in two models, i.e.,

  • H952T - “High Frequency” (HF) model.
  • U952T - “Ultra-High Frequency (UHF) model.

The Ascom 952T transmitter is equipped with adjustable output power that is typically set in compliance with regulations of the applicable authorities.

ascom-image-Ascom 952T Terminal Transmitter

Ascom 952T technical specification

Physical 

  • Dimensions: 275 x 130 x 60 mm 
  • Weight: 1.0 kg max 
  • Case: PC/ABS, light grey 
  • Operating temp. range: – 20 to + 55°C 
  • Supply voltage: 12.5 Vdc ± 10% 1) 
  • Current consumption: H952: 2.0 A max U952: 2.5 A max 
  • External connections: Screw terminals and modular connectors 
  • Antenna output connections: Coaxial connector TNC 
  • Data interfaces: RS485 
  • Speech input: Transformer isolated via interface module Input level: 0.77 Vrms 
  • Frequency range: 700 - 3000 Hz

Radio

  • Frequency range: 
    • H952T: 25 - 50 MHz 
    • U952T: 425 - 475 MHz 
  • Channel separation: 10 / 12.5 / 20 / 25 kHz 
  • Deviation: 1.5 / 1.5 / 2.5 / 3 kHz 
  • Adjacent channel suppression: > 55 / > 60 / > 70 / > 70 dBc 
  • Modulation: FSK 
  • Frequency stability: ± 0.6 kHz 
  • Output power: Adjustable, 5 W max into 50 ohm 
  • Spurious emission: <250 nW 

Supporting documents

Ascom paging 900 folder
PDF

Ascom Paging 900 folder

A complete solution for time-critical messaging and personal security.