Specifications

SWITCHES TO GROUND OPEN COLLECTOR

The general purpose inputs can control all the buttons on the base station, make a

general call to all lines, cause a Mic Kill or enable/disable the Buzzer Kill. By default the

base station is configured with input 1 as the PANEL MIC button, and input 2 can cause

a general call (simultaneous CALL to CH A, B, C and D).

The outputs are open collector, so we can feed to other power circuits provided (50

Volts DC maximum). In the output connector is available a supply of 5 volts DC to power the

open collector circuit, this power is limited to 100 mA. The outputs can be connected to

LEDs indicators, DC relays, among others.

LED LAMPS DC RELAY CONTROL

To general-purpose outputs can send the state of all buttons of the base station, the

general call to all lines, the Mic Kill or the Buzzer Kill. By default the base station is

configured with output 1 as the state of Mic Kill, and output 2 to the general call state.

The configuration of the general purpose inputs and outputs can not be done directly

from the base station front panel; instead it is necessary a USB connection to a PC running

the free Altair EF-204 control software. Configuration is saved on the unit.

SYSTEMS WITH MORE THAN 50 WIRED BELTPACKS

It is possible to connect two master stations (EF-202/EF-204) in installations where it is

necessary more than 50 wired beltpacks (EM-201), with their lines in parallel (A with A

and/or B with B and/or C with C and/or D with D), always having the caution of opening the

terminal impedance (in order to obtain more information, consult the terminal impedance

switch/selector section ), of the secondary master station lines that serves us simply as

intercom line power reinforcement. In this type of operations, the master station unit is

connected at the beginning of the intercom chain, and the secondary unit at the end of this

line. In this way we will reinforce the beltpack units placed at the further positions. For this

purpose, it is also possible to use the Altair PS-200 power supply unit.

EF-202/EF-204 MASTER STATION – E200 SERIES