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MA-001 – TRANSFIX-family Installation Manual – Rev 3.0
18-Jan-16
Page 32 of 55
11
COMMUNICATIONS
Various communication options are available for the product. These include:
A USB slave connection — allows serial communications with an external
computer. This connection is available on the panel inside the product.
An Ethernet connection (using the MODBUS/TCP protocol). This connection is
available on the circuit board inside the inner door.
Up to two further communications channels. However, if a DNP3 module is fitted
(one maximum) this limits the available communication channels to one.
The product supports simultaneous communication on several channels – up to three
masters over Ethernet, and one master on each of the serial connections (including the
USB connection) as listed in Table 11—1.
Table 11—1: Product communications channels
Channel
Carrier
Protocol
MODBUS/
RTU
MODBUS/
TCP
MODBUS/
ASCII
DNP3.0
IEC61850
USB
USB
-
-
-
-
Chan
ne
l A*
RS-232 Isolated
-
RS-485 2-wire
-
RS-485 4-wire
-
PSTN
-
-
-
-
GSM/GPRS
-
-
-
-
CDMA
-
-
-
-
Chan
ne
l B
RS-232 Isolated
-
RS-485 2-wire
-
RS-485 4-wire
-
PSTN
-
-
-
-
GSM/GPRS
-
-
-
-
CDMA
-
-
-
-
Ethernet
Ethernet
-
-
-
-
DNP3
Ethernet
-
-
-
-
*Note: Channel A is disabled when DNP3 over Ethernet is selected.
The options listed above are available at the time of printing – other options may become
available. (Contact the GE Customer Service Centre for further information.)