GE Grid Solutions MDS Master Station - COM1 Interface

98 MDS™ Master Station MDS 05-6399A01, Rev. F
Figure 6-4. Ethernet Port (RJ-45) Pinout
(As viewed from the outside)
Table 6-5. Ethernet Interface Pin Descriptions
Pin
Functions
Ref.
1
Transmit Data (TX)
High
2
Transmit Data (TX)
Low
3
Receive Data (RX)
High
4
Unused
5
Unused
6
Receive Data (RX)
Low
7
Unused
8
Unused
COM1 Interface
COM1 supports the RS-232 serial data format at serial data rates of 300, 1200, 2400, 4800, 9600,
19200, 38400, 57600, and 115200 bps (asynchronous only).
Figure 6-5 COM1 Connector (RJ-45)
(As viewed from outside the unit)
COM1 is hard-wired as a DCE device.
Table 6-6. COM1 Pin Descriptions
Pin
Number
Radio Input/
Output
Pin Description
1
OUT
DSR (Data Set Ready)
2
OUT
DCD (Data Carrier Detect/Link)—A high indicates
signal received.
3
IN
DTR (Data Terminal Ready)
4
--
Ground—Connects to ground (negative supply
potential) on chassis.
5
OUT
RXD (Received Data)—Supplies received data to the
connected device.
Ground—Connects to ground (negative supply
potential) on chassis.
6
IN
TXD (Transmitted Data)—Accepts TX data from the
connected device.