GE MDS TransNEXT NET9L - COM Port Pin Details (RS-232)

16 MDS TransNEXT Technical Manual MDS 05-7280A01, Rev. A
Supported data formats for the COM port are:
com1.databits
com1.paritybits
com1.stopbits
8N1 - 8 char bits, no parity, 1 stop bit (Default)
8
“N”
1
8N2 - 8 char bits, no parity, 2 stop bits
8
“N”
2
8O1 - 8 char bits, odd parity, 1 stop
8
“O”
1
8O2 - 8 char bits, odd parity, 2 stop bits
8
“O”
2
8E1 - 8 char bits, even parity, 1 stop bit
8
“E”
1
8E2 - 8 char bits, even parity, 2 stop bits
8
“E”
2
The tables on the following page provide pin descriptions for the COM data port in RS-232 mode and
RS-485 modes, respectively.
(As viewed from the outside the unit)
Table 2-2. COM Port Pin Details (RS-232)
Pin
Number
Input / Output
Pin Description
1
OUT
ALARM Output
2
OUT
DCD (Data Carrier Detect)
3
Reserved
--
4
Ground
Connects to ground (negative supply potential) on chassis
5
OUT
RXD (Received Data)—Supplies received data to the connected device
6
IN
TXD (Transmitted Data)—Accepts TX data from the connected device
7
OUT
CTS (Clear to Send)
8
IN
RTS (Request to Send)