
Mechanical Connector Pinouts
QTERM-A12 Terminal 29
7.2.2 Secondary Serial Port
The secondary serial port on the QTERM-A12 is configured as EIA-232 only with hardware
or software handshaking. The pins are defined below.
7.2.3 Terminal Strip for Power Input
The 3-pin terminal strip is used to provide input voltage and ground to the terminal. The termi-
nal strip provides a chassis ground connection. The chassis ground pin is isolated from the sys-
tem ground of the terminal.
CAUTION
For Class I, Division 2 installations:
Do not connect or disconnect cables while power is applied unless the area is known to be
non-hazardous.
Pinout Table
1—
Figure 14
Female DB9 Connector
2TX
3RX
4—
5 Ground
6—
7CTS (in)
8RTS (out)
9—
CAUTION
For Class I, Division 2 installations:
Do not connect or disconnect cables while power is applied unless the area is known to be
non-hazardous.
Figure 15
3-Pin Power Connector
Pin Function
1Power
2 Ground
3 Chassis GND
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