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Rev 1.15
SignalFire Telemetry
5
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 Interface module)
RS232 RX (YEL)
MODBUS A (GRN)
RS-232 Debug RX, 9600 Baud (Only used with Ethernet Interface 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 Interface Module, the 6-potition screw terminal block should be
connected to the color coded “Gateway Stick Connection” connector on the Ethernet Interface
Module. Power can be supplied either to the Power Input terminals on the Ethernet Interface Module
or via power over Ethernet (PoE). For more information on configuring and using the Ethernet
Interface Module, please consult the Ethernet Interface Module manual.
NOTE: when used with an Ethernet Interface Module the DB9 on the Ethernet module must be used for
ToolKit access.