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COMM IN PORT *
DB9-
SIGNAL
MPIN#
1
COMM IN First Unit
2
Receive Data (RXD)
3
Transmit Data (TXD)
4
Data Terminal Ready
(DTR)
5
Signal Ground
6
Data Set Ready (DSR)
7
NOT USED
8
NOT USED
9
NOT USED
* Do NOT connect pins 1, 8, and 9 on the COMM IN port when connecting with a controlling device, such as a
terminal, PC, or modem.
Table 7. COMM Port Pin Assignments
DIRECTION
DB9-
FPIN#
IN
1
OUT
2
IN
3
IN
4
—
5
OUT
6
—
7
—
8
—
9
ADCP-80-552 • Issue 2 • November 2000
COMM OUT PORT
SIGNAL
COMM OUT First Unit
Receive Data (RXD)
Transmit Data (TXD)
Data Terminal Ready
(DTR)
Signal Ground
Data Set Ready (DSR)
NOT USED
NOT USED
NOT USED
© 2000, ADC Telecommunications, Inc.
DIRECTION
OUT
IN
OUT
OUT
—
IN
—
—
—
Page 23
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