TransPort WR44 / WR44 R hardware
Digi TransPort User Guide 67
1. ASY serial port (3x): Provides three additional asynchronous RS232 serial ports using RJ45
connectors.
2. SYN/ASYN serial port: Provides an X.21/RS422/RS232 synchronous / asynchronous serial
port using a DB25 connector.
3. GPS antenna connector (GPS models only): Provides GPS capabilities using an SMA male
connector.
4. ISDN: Provides an ISDN Basic Rate Interface (BRI) via an RJ45 port. This can be configured
either as a TE (terminal endpoint) or as NT-1 (network termination). The option also includes
an additional asynchronous serial port via a second RJ45 port.
5. Telemetry 1 I/O interface: Provides 4 opto-isolated digital input ports and 1 opto-isolated
digital output port. It also provides a relay I/O port, a voltage monitoring port, and internal
temperature monitoring.
6. Telemetry 2 I/O interface: Provides 4 isolated analog I/O ports and 4 non-isolated digital I/O
ports.
7. Fleet I/O interface: Provides CAN and J1708 interface, GPS, 4 non-isolated digital I/O ports,
ignition sense port, and a 3 axis accelerometer.
8. PSTN: Provides a PSTN interface via an RJ45 connector that can be used to dial out and receive
calls.
9. ISDN-U/PSTN: Provides an ISDN-U interface suitable for the USA plus PSTN interface. It can be
configured for Bell-103 modulation in leased line mode as well as a normal PSTN interface.
10.DialServ: This RJ11/FXS connection converts a PSTN analog modem to a RS-232 serial signal.
For more information on the Telemetry 1, Telemetry 2, and the Fleet I/O Interfaces please see the
product specific user’s guides, available on www.digi.com on the TransPort WR44 product
Resources page.
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