Products
Low Power Transceiver with Ethernet - VHF / UHF (20-90)
The 20-90 is a simple to configure POCSAG paging transceiver with a high sensitivity receiver combined with a 100mW transmitter. It operates over the frequency range of 142-175MHz (VHF variant) or 440 479MHz (UHF variant) decoding and encoding 512 or 1200 baud, alphanumeric or numeric messages.
The 20-90 supports multiple message queueing and will queue up to four 73-character messages or more smaller messages.
The 20-90 Can be controlled via an RS232 serial interface or TCP/IP to provide numeric, alphanumeric and tone only POCSAG encoding.
The product supports full batching of serially queued input messages and can be configured to automatically respond with checksum information of the last received message.
An intelligent self-adjusting channel busy check prevents message collision or corruption.
The receiver is supplied with clean contacts rated at 1A 24V DC operation. LEDs indicate receiver operation and status.
Virtual outputs can be used to remotely trigger input or periodic messages and provide a mechanism to acknowledge reception of messages. It can transmit the received signal strength of the last received message allowing the receiver positioning and system health to be monitored.
| Frequency Range | 142-175MHz (VHF) 440-479MHz (UHF) |
| Frequency Selection | User configurable |
| Power Supply | +13.8V typical (11 to 15 VDC range) |
| Power Consumption | Standby: 43mA Transmit: 73mA at 100mW (VHF) Relays: 22mA per energised relay Ethernet + 33mA |
| Transmit Power | 10, 20, 50 or 100mW |
| Channel Spacing | 10kHz, 12.5kHz, 6.25kHz |
| Modulation | FSK with NRZ data |
| Deviation | ±4.5kHz & ±2.3kHz |
| Receiver Sensitivity | Approx -120 dBm |
| Baud Rates | 512, 1200, 2400 |
| Message Format | POCSAG |
| Configuration Application | Salcom Configuration Tool (Downloadable from 'Downloads' tab) |
| Programming Cable | 12-45-0000 (RJ12 to DB9) Can be used with a USB to RS232 DB9 Serial Adapter Cable |
| Serial Port | 9600, N, 8, 1; RS232 |
| Serial Protocols | Salcom, Scope, TNPP v3.8 |
| Discrete Inputs | Up to five, dependent on number of inputs configured |
| Ethernet | TCP/IP |
| Discrete Outputs | Up to five open drain outputs, dependent on number of inputs configured Two rated to 500mA max. and three current limited to 5mA max. |
| Connectors | Serial Port (RS232) = RJ12 (6P6C) Inputs / Relay Output / Open Collector) = RJ45 (8C) Ethernet = RJ45 |
| Power Connector | 2-way plug & socket, screw connections (supplied) |
| RF Connector | 50Ω SMA |
| Environmental Protection | Not suitable for outdoor use and should be protected from adverse environmental conditions |
| Operating Temperature | -10ºC to +50ºC (+14ºF to +122ºF) |
| Indicators | Power LED (Green) - Flashing (1s Freq) = Normal Operation - Solid (up to 5s) = Receiving Data Status LED (Red) - On = Transmitting - Flashing = Error Condition |
| Weight | 188g |
| Enclosure Dimensions | 130mm x 68mm x 31mm (W x D x H) |
| Enclosure Material | Extruded aluminium |
| Colour | Silver |
| Type Approvals | AS/NZS 4769.1:2000 + Amendment 1:2002 (RF) EN 300-224-2 (RF) (to follow) FCC CFR47 Part 90 (RF) FCC CFR47 Part 15 (EMC) EN 301 489-2 V2.1.0 (EMC) (to follow) EN 60950-1:2006 (Safety) (to follow) |
| Other | All specifications subject to change without prior notification. |
The 20-90 Can be controlled via an RS232 serial interface or TCP/IP to provide numeric, alphanumeric and tone only POCSAG encoding.
The product supports full batching of serially queued input messages and can be configured to automatically respond with checksum information of the last received message.
An intelligent self-adjusting channel busy check prevents message collision or corruption.
The receiver is supplied with clean contacts rated at 1A 24V DC operation. LEDs indicate receiver operation and status.
Virtual outputs can be used to remotely trigger input or periodic messages and provide a mechanism to acknowledge reception of messages. It can transmit the received signal strength of the last received message allowing the receiver positioning and system health to be monitored.
| Frequency Range | 142-175MHz (VHF) 440-479MHz (UHF) |
| Frequency Selection | User configurable |
| Power Supply | +13.8V typical (11 to 15 VDC range) |
| Power Consumption | Standby: 43mA Transmit: 73mA at 100mW (VHF) Relays: 22mA per energised relay Ethernet + 33mA |
| Transmit Power | 10, 20, 50 or 100mW |
| Channel Spacing | 10kHz, 12.5kHz, 6.25kHz |
| Modulation | FSK with NRZ data |
| Deviation | ±4.5kHz & ±2.3kHz |
| Receiver Sensitivity | Approx -120 dBm |
| Baud Rates | 512, 1200, 2400 |
| Message Format | POCSAG |
| Configuration Application | Salcom Configuration Tool (Downloadable from 'Downloads' tab) |
| Programming Cable | 12-45-0000 (RJ12 to DB9) Can be used with a USB to RS232 DB9 Serial Adapter Cable |
| Serial Port | 9600, N, 8, 1; RS232 |
| Serial Protocols | Salcom, Scope, TNPP v3.8 |
| Discrete Inputs | Up to five, dependent on number of inputs configured |
| Ethernet | TCP/IP |
| Discrete Outputs | Up to five open drain outputs, dependent on number of inputs configured Two rated to 500mA max. and three current limited to 5mA max. |
| Connectors | Serial Port (RS232) = RJ12 (6P6C) Inputs / Relay Output / Open Collector) = RJ45 (8C) Ethernet = RJ45 |
| Power Connector | 2-way plug & socket, screw connections (supplied) |
| RF Connector | 50Ω SMA |
| Environmental Protection | Not suitable for outdoor use and should be protected from adverse environmental conditions |
| Operating Temperature | -10ºC to +50ºC (+14ºF to +122ºF) |
| Indicators | Power LED (Green) - Flashing (1s Freq) = Normal Operation - Solid (up to 5s) = Receiving Data Status LED (Red) - On = Transmitting - Flashing = Error Condition |
| Weight | 188g |
| Enclosure Dimensions | 130mm x 68mm x 31mm (W x D x H) |
| Enclosure Material | Extruded aluminium |
| Colour | Silver |
| Type Approvals | AS/NZS 4769.1:2000 + Amendment 1:2002 (RF) EN 300-224-2 (RF) (to follow) FCC CFR47 Part 90 (RF) FCC CFR47 Part 15 (EMC) EN 301 489-2 V2.1.0 (EMC) (to follow) EN 60950-1:2006 (Safety) (to follow) |
| Other | All specifications subject to change without prior notification. |
