User's Manual

Rev 1.3 SignalFire Telemetry

Connections and Components

DIN Gateway Connections

The DIN Gateway has a 6-position pluggable terminal block for power and serial communications. The

connections are as follows:

Terminal Name

Connection

6-36VDC (RED)

Positive Power (6 to 36 VDC)

GROUND (BLK)

Ground

RS232 TX (ORG)

RS-232 Debug TX, 9600 Baud (Only used with Ethernet GW module)

RS232 RX (YEL)

MODBUS A (GRN)

RS-232 Debug RX, 9600 Baud (Only used with Ethernet GW module)

RS-485 “A”, 9600 Baud

MODBUS B (BRN)

RS-485 “B”, 9600 Baud

In addition, a RS232 DB9 port is available for connection to the SignalFire Toolkit for configuration and

diagnostics.

Gateway Hardware revision 2 also has a 3-position pluggable terminal block with two open collector

digital outputs for signaling or alarm functions. Each output is rated to 30VDC and 1 Amp.

Optional Ethernet Gateway Connections

When used with a SignalFire Ethernet Gateway module, the 6-potition screw terminal block should be

connected to the color coded “Gateway Stick Connection” connector on the Ethernet Gateway. Power

can be supplied either to the Power Input terminals on the Ethernet Gateway or via power over

Ethernet (PoE).

NOTE: when used with an Ethernet Gateway module the DB9 on the Ethernet module must be used for

ToolKit access.