FEATURES.

• Up to 5 simultaneous FM radio stations supervision.
• Digital tuning for each FM radio station.
• Four programmable parameters:
  • Minimun level for alarm.
  • Timed low level alarm trigger.
  • Timed stereo pilot tone alarm trigger.
  • Alarms inhibition.
• Four alarms by FM radio station:
  • Low level on the right channel.
  • Low level on the left channel.
  • Stereo pilot tone fail.
  • Out of phase channels.
• Power fail alarm.
• Relay contact (solid state) by alarm to be connected to a teletransmission system or a visual panel.
• Relay contact (solid state) by general alarm.
• Audible monitoring of each FM radio station.
• Audio output available on each tuner.
• Housed in a 19" (3U) cabinet.

SYSTEM OVERVIEW.

This system has been designed to supervise several "on air" FM broadcast simultaneously.

The system is composed of a mainframe (3U) with a control board to centralize the alarms and as many digital tuner boards as radio stations to supervise (up to 5 by mainframe).

All controls are digital and they are placed at the back of a folding front cover. Three push-buttons on the tuner boards to select the radio station frequency and three push-buttons on the control board to select the alarm parameters.

These alarms can be received onto a visual control panel or be connected trought a teletransmision system in unattended centers.

The programmed parameters are load in a non volatile memory (EEPROM). The tuners have an small battery capable of save the programme during a power fail.

Behind each tuner both audio channels are available in a XLR connector for monitoring purposes. However, the tuner have a small speaker that can be used for this purpose.

All output alarms are in two connectors at the back of the control board. The general alarm (OR of all alarms) is placed in a single connector and the rest in a 25 pole, subD connector.

All the contacts are solid state (optoMOS), without polarity and optically isolated. All they are independent outputs with a common terminal except the general alarm that has a different output.

TECHNICAL SPECIFICATIONS.

GENERAL: Power mains Power consumption (1 tuner) Temperature range	220 V. ac. ±10%. (110 V. ac. on request) 2 VA. 0 a +50°C (ambient temperature).
FM TUNERS: Reception band Tuning Frequency step Audio output level	87,5 a 108 MHz. Digital (auto/manual). 100 KHz. 0 dBm (max. by channel).
ALARM RELAYS: Coil-contact isolation Maximun contact voltage Maximun contact current Contact resistance (on)	3.750 V. 350 V. pp. 120 mA. 10-35 Ohm.
CONNECTORS: Audio/antenna output General alarm FM Programmes alarms Power mains	XLR, 3 pole, male. 2 pole (micro). 25 pole subD, male. IEC 320.
DIMENSIONS:	19" (3U) x 170 mm.
WEIGHT: Mainframe + control + power supply Each tuner board	2.410 gr. 370 gr.

MIT Comunicaciones, S.L. c/Alcaudón, 11  28019 MADRID (SPAIN) Tel.: +34 91 471 84 42 Fax: +34 91 472 01 62

E-mail:mit@mit-com.com