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Input Expansion Unit - 20-03

20-03

The 20-03 is an I/O expander Module which provides four relay outputs, plus eight open drain I/O pins which also serve as inputs.

 

The 20-03 is an I/O expander Module which provides four relay outputs,
plus eight open drain output pins which also serve as inputs.

The 20-03 outputs can be activated by Salcom Relay Protocol or other ASCII text over a serial connection.

Salcom Relay Protocol commands may be embedded in a POCSAG message received by a 20-90 transceiver, allowing activation of outputs by remote POCSAG transmitters.

Activation by POCSAG messages can be limited to a CAP code range, or
outputs can be triggered by any message sent to a CAP code within a range. Outputs may also be configured to respond to any specified text within the serial data.

Inputs on the 20-03 can generate Salcom protocol POCSAG messages over a serial connection which can be transmitted to a pager by a Salcom 20-90 transceiver or a Salcom 20-62 transmitter. Alternatively, inputs can be configured to send any ASCII text over the serial connection in response to an input change.

  • I/O expander for the Salcom 20-62 transmitter or Salcom 20-90 transceiver
  • Bidirectional Point-to-point control over serial or radio link
  • Expandable further by daisy chaining Salcom 20-03 units
  • Four relay outputs with normally open and normally closed contacts
  • Eight bidirectional inputs generate user defined serial messages for rising and/or falling edges
  • Compatible with Salcom message protocol
  • Flexible output activation options
  • Control over Ethernet using third party serial to ethernet adaptors
  • Provides Input and Output capabilities for PC’s, PLC’s, and microcontroller projects
  • Can generate regular watchdog messages to check serial and radio link integrity
Technical Specifications
Power Supply +13.8V typical (11 to 15 VDC range)
Power Consumption Normal Operation: 15mA
Relays: 20mA per energized relay
Configuration Application Salcom Configuration Tool (Sacoto)
Programming Cable 12-45-0000 (RJ12 to DB9)
Can be used with a USB to RS232 DB9 Serial Adapter Cable
Serial Port 2 ports, 9600, N, 8, 1; RS232
Serial Protocols Salcom Relay protocol
Salcom Message protocol
ASCII strings to trigger outputs
ASCII messages triggered by inputs
Multiple units may be daisy-chained for additional inputs or outputs, or to create a bi-directional link between inputs and outputs on separate units.
Relay Outputs 4 Relays with normally open and normally closed contacts 1A@4Vdc
Open Drain Outputs Eight open drain outputs with 500mA resettable fuses (PTC).
Selectable as 5mA current limited.
Internal protection for inductive loads.
Maximum voltage = supply voltage.
Inputs 8 inputs monitoring the open drain outputs.
Open drain outputs have an internal pull-up to 3.3v (4k) and maybe pulled low externally.
Connectors Two-way pluggable DC power connector
Serial Port 1 (RS232) = RJ12 (6P6C)
Serial Port 2 (RS232) = RJ12 (6P6C)
Terminal block: 2 rows x 12 way, 3.81mm pitch.
Two 12-way plugs with screw connections (supplied)
Environmental Protection Not suitable for outdoor use and should be protected from adverse environmental conditions
Operating Temperature -10°C to +50°C (+14°F to +122°F)
Indicators Power LED (Green)
Slow Flashing = Normal Operation
Data LED (Red)
On = Active Serial Data
Flashing = Programming Mode
Weight 250g
Enclosure Dimensions 68mm x 150mm x 38mm (WxDxH)
Enclosure Material Extruded aluminum
Colour Matt Black
Compliance EN 301 489-2 (V2.1.1, 2019-04)
20-03 Product Brochure
Product Manual
Configuration Tool
  • Information

    The 20-03 is an I/O expander Module which provides four relay outputs,
    plus eight open drain output pins which also serve as inputs.

    The 20-03 outputs can be activated by Salcom Relay Protocol or other ASCII text over a serial connection.

    Salcom Relay Protocol commands may be embedded in a POCSAG message received by a 20-90 transceiver, allowing activation of outputs by remote POCSAG transmitters.

    Activation by POCSAG messages can be limited to a CAP code range, or
    outputs can be triggered by any message sent to a CAP code within a range. Outputs may also be configured to respond to any specified text within the serial data.

    Inputs on the 20-03 can generate Salcom protocol POCSAG messages over a serial connection which can be transmitted to a pager by a Salcom 20-90 transceiver or a Salcom 20-62 transmitter. Alternatively, inputs can be configured to send any ASCII text over the serial connection in response to an input change.

  • Details
    • I/O expander for the Salcom 20-62 transmitter or Salcom 20-90 transceiver
    • Bidirectional Point-to-point control over serial or radio link
    • Expandable further by daisy chaining Salcom 20-03 units
    • Four relay outputs with normally open and normally closed contacts
    • Eight bidirectional inputs generate user defined serial messages for rising and/or falling edges
    • Compatible with Salcom message protocol
    • Flexible output activation options
    • Control over Ethernet using third party serial to ethernet adaptors
    • Provides Input and Output capabilities for PC’s, PLC’s, and microcontroller projects
    • Can generate regular watchdog messages to check serial and radio link integrity
  • Specifications
    Technical Specifications
    Power Supply +13.8V typical (11 to 15 VDC range)
    Power Consumption Normal Operation: 15mA
    Relays: 20mA per energized relay
    Configuration Application Salcom Configuration Tool (Sacoto)
    Programming Cable 12-45-0000 (RJ12 to DB9)
    Can be used with a USB to RS232 DB9 Serial Adapter Cable
    Serial Port 2 ports, 9600, N, 8, 1; RS232
    Serial Protocols Salcom Relay protocol
    Salcom Message protocol
    ASCII strings to trigger outputs
    ASCII messages triggered by inputs
    Multiple units may be daisy-chained for additional inputs or outputs, or to create a bi-directional link between inputs and outputs on separate units.
    Relay Outputs 4 Relays with normally open and normally closed contacts 1A@4Vdc
    Open Drain Outputs Eight open drain outputs with 500mA resettable fuses (PTC).
    Selectable as 5mA current limited.
    Internal protection for inductive loads.
    Maximum voltage = supply voltage.
    Inputs 8 inputs monitoring the open drain outputs.
    Open drain outputs have an internal pull-up to 3.3v (4k) and maybe pulled low externally.
    Connectors Two-way pluggable DC power connector
    Serial Port 1 (RS232) = RJ12 (6P6C)
    Serial Port 2 (RS232) = RJ12 (6P6C)
    Terminal block: 2 rows x 12 way, 3.81mm pitch.
    Two 12-way plugs with screw connections (supplied)
    Environmental Protection Not suitable for outdoor use and should be protected from adverse environmental conditions
    Operating Temperature -10°C to +50°C (+14°F to +122°F)
    Indicators Power LED (Green)
    Slow Flashing = Normal Operation
    Data LED (Red)
    On = Active Serial Data
    Flashing = Programming Mode
    Weight 250g
    Enclosure Dimensions 68mm x 150mm x 38mm (WxDxH)
    Enclosure Material Extruded aluminum
    Colour Matt Black
    Compliance EN 301 489-2 (V2.1.1, 2019-04)
  • Manuals & Downloads
    20-03 Product Brochure
    Product Manual
    Configuration Tool