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, 1200 or 2400 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 | VHF: 140 - 176MHz UHF: 420 - 480MHz |
| Frequency Selection | User configurable |
| Transmit Power | 10mW, 20mW, 50mW or 100mW |
| Transmit Duty Cycle | 100% |
| Channel Width | 6.25 kHz, 12.5 kHz, or 25 kHz |
| Deviation | ±1.0kHz, ±2.3kHz or ±4.5KHz |
| Modulation | GFSK with NRZ data (POCSAG) |
| Over-air Baud Rates | 512, 1200, 2400 |
| Receiver Sensitivity | -123 dBm at 512 baud -118 dBm at 2400 baud |
| Relays | Two Relays on RJ45 connector; one SPDT, one SPST |
| Definable I/O | Five I/O pins user configurable as input or output |
| Open drain outputs | Up to two 500mA open drain outputs with resettable fuses on RJ45 Up to three 5mA current limited open drain outputs on RJ12 |
| Inputs | Up to five active low inputs on open drain output pins |
| Serial Port | RS-232 on RJ12 connector. 9600 baud, no parity, 8-bits, 1-stopbit |
| Data interfaces | RS-232 (with adaptor) and Ethernet |
| Serial Protocols | Salcom, Scope, TNPP v3.8 |
| Configuration Software | Salcom Configuration Tool (Sacoto) |
| RF Connector | 50Ω SMA |
| Power Connector | DC power pluggable terminal block (provided) |
| Power Supply | +13.8V typical (10 to 15 VDC range) |
| Power Consumption | Standby: 45mA Transmit: 90mA Ethernet: +35mA when connected to Ethernet Relays: +20mA per energized relay |
| Operating Temperature | -10ºC to +50ºC (+14ºF to +122ºF) |
| Environmental Protection | Not suitable for unprotected outdoor use. Must be protected from adverse environmental conditions. |
| Indicators | Power LED (Green) • Slow Flashing = Normal Operation • Fast Flashing = low battery TX/Busy LED (Red) • Flashing fast = Transmitting • Solid on = Chanel busy |
| Weight | 190g |
| Enclosure Dimensions | 130mm x 68mm x 31mm (W x D x H) |
| Enclosure Material | Extruded aluminium |
| Colour | Bright silver anodised aluminium |
| Type Approvals | AS/NZS 4769.1:2000 + Amendment 1:2002 (RF) EN 300-224 V2.1.0 (RF), EN 301-489-2 V2.1.0 (EMC) EN 60950-1:2006 (Safety) FCC CFR47 Part 90 (RF), Part 2 (RF), Part 15 (EMC), Part 1 (Safety) |
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 | VHF: 140 - 176MHz UHF: 420 - 480MHz |
| Frequency Selection | User configurable |
| Transmit Power | 10mW, 20mW, 50mW or 100mW |
| Transmit Duty Cycle | 100% |
| Channel Width | 6.25 kHz, 12.5 kHz, or 25 kHz |
| Deviation | ±1.0kHz, ±2.3kHz or ±4.5KHz |
| Modulation | GFSK with NRZ data (POCSAG) |
| Over-air Baud Rates | 512, 1200, 2400 |
| Receiver Sensitivity | -123 dBm at 512 baud -118 dBm at 2400 baud |
| Relays | Two Relays on RJ45 connector; one SPDT, one SPST |
| Definable I/O | Five I/O pins user configurable as input or output |
| Open drain outputs | Up to two 500mA open drain outputs with resettable fuses on RJ45 Up to three 5mA current limited open drain outputs on RJ12 |
| Inputs | Up to five active low inputs on open drain output pins |
| Serial Port | RS-232 on RJ12 connector. 9600 baud, no parity, 8-bits, 1-stopbit |
| Data interfaces | RS-232 (with adaptor) and Ethernet |
| Serial Protocols | Salcom, Scope, TNPP v3.8 |
| Configuration Software | Salcom Configuration Tool (Sacoto) |
| RF Connector | 50Ω SMA |
| Power Connector | DC power pluggable terminal block (provided) |
| Power Supply | +13.8V typical (10 to 15 VDC range) |
| Power Consumption | Standby: 45mA Transmit: 90mA Ethernet: +35mA when connected to Ethernet Relays: +20mA per energized relay |
| Operating Temperature | -10ºC to +50ºC (+14ºF to +122ºF) |
| Environmental Protection | Not suitable for unprotected outdoor use. Must be protected from adverse environmental conditions. |
| Indicators | Power LED (Green) • Slow Flashing = Normal Operation • Fast Flashing = low battery TX/Busy LED (Red) • Flashing fast = Transmitting • Solid on = Chanel busy |
| Weight | 190g |
| Enclosure Dimensions | 130mm x 68mm x 31mm (W x D x H) |
| Enclosure Material | Extruded aluminium |
| Colour | Bright silver anodised aluminium |
| Type Approvals | AS/NZS 4769.1:2000 + Amendment 1:2002 (RF) EN 300-224 V2.1.0 (RF), EN 301-489-2 V2.1.0 (EMC) EN 60950-1:2006 (Safety) FCC CFR47 Part 90 (RF), Part 2 (RF), Part 15 (EMC), Part 1 (Safety) |
