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T e c h n i c a l I n f o r m a t i o n
Serial Ports J8A1 (Y)
These identical PS/2 compatible connectors share a common housing.
When viewed on the rear panel, COM2 is on the left and COM1 is on
the right. These ports support external devices such as modems and
scanners that require serial data transmission.
Pin
1
2
3
4
5
6
7
8
9
Figure 5-5 Serial Port
5-38 OWNER'S HANDBOOK
Signal
DCD (data carrier detect)
RXD (receive data)
TXD (transmit data)
DTR (data terminal ready)
GND (ground)
DSR (data set ready)
RTS (request to send)
CTS (clear to send)
RIA (ring indicator)
1
5
6
9
10101
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