The 12-88 is a high sensitivity, VHF/UHF receiver which is able to control 3 outputs (one relay and two as open collector). It operates over the two frequency ranges, VHF 148Mhz to 165MHz (model 12-88-7150) and UHF 440Mhz to 470MHz (model 12-88-7450).
The 12-88-7000 decodes 512 or 1200 baud, alphanumeric or numeric Salcom control protocol messages.
- Control equipment by turning the on-board relay on or off upon receipt of a control command.
- Control low current equipment or external relays by switching the open collector outputs
independently upon receipt of an appropriate control command.
- Send the commands to a PC via the serial output of the paging receiver for remote serial control
The 12-88 is a cost effective remote switching solution which is simple to install and can be configured using any serial terminal program.
A 12-48 USB or 12-47 serial programming adaptor is required to configure any unit parameters.
To control the outputs a message must be received that matches the unit ID with a suitable control code sequence (Salcom relay control protocol). The received message must also be the expected baud rate and format. The 12-88 will also respond to a group unit ID of “00”.
A mono-shot timer can be set to between 0.1 seconds to 6553 seconds for each output allowing the output to open automatically after being closed.
Setting any output mono-shot timer to 0000 results in the output remaining latched until a message is received to change its current state.
如果配置为这样做, each output state will be stored and restored to the last set state on power up.
The 12-88 can be configured to respond to up to 4 different CapCodes (RICs).
Decoded messages are also sent to the programming connector (serial port). These contain the message payload only, making the output suitable for remote serial control 十大网博靠谱平台.