User`s manual

24 www.rabbit.com EM1500 Specifics
4.3 Connector Pin-Outs
This section describes the pin-outs for the serial ports and the 9- and 10-pin connectors.
4.3.1 Serial Port 1 (SER1)
The serial port known as SER1 is wired as a DTE with a DE9 male connector. It is located at the lower
right on the rear of the unit. The figure below shows the pin-out. The black circles (Tx, DTR and RTS)
denote outputs. The white circles denote inputs.
Figure 4.3 Pin-Out for SER1
4.3.2 Serial Port 2 (SER2)
The serial port known as SER2 is wired as a DCE with a DE9 female connector. It is located at the upper
right on the rear of the unit. The figure below shows the pin-out. The black circles denote outputs. The
white circles denote inputs.
Figure 4.4 Pin-Out for SER2
1
6
5
9
Rx
Tx
DTR
GND
RI
CTS
RTS
DSR
DCD
1
6
5
9
RxTxDTR
GND
RI
CTS
RTS
DSR
DCD