The new 20-34 is a low cost relay output module which enables four relays to be remotely controlled using the Salcom relay control protocol. The module provides a fully scaleable relay expansion solution for the Salcom 12-84 Relay Output Paging Receiver as modules can be "daisy-chained" to control any number of relays.
While it is most commonly used to expand the number of relay outputs available on the current Salcom 12-84 Relay Output Paging Receiver, it has the potential to be utilised with other paging receivers and also can be used autonomously under computer control.
The relay unit connects directly to a 12-84 receiver or PC serial port without any special configuration requirements. The 12-84 receiver can be configured to send all relay control packets down the serial port to all other units.
A programming tool is not required for the 20-34, all configurable parameters can be programmed via the serial port using a terminal program on a PC.
On start-up the firmware version number, monoshot timer settings and unit ID are displayed, and can be changed.
The 20-34 is housed in a durable extruded aluminium case, but should be protected from the weather if installed outdoors.