HP C100/110 User Manual
Page 29
13
System Overview
System Unit Rear Panel Connectors
Table 2 shows the SIO connector pin listings. The serial connectors are 9-pin
D-sub connectors. Signal names are those specified in the EIA RS-232 stan-
dard.
SCSI Connectors
Use the single-ended and fast, wide connectors to connect external SCSI
devices such as DDS-format tape drives and CD-ROM drives. Consult the
documentation that accompanies each SCSI device for specific information
concerning its use. Refer to Appendix C for information about connecting
SCSI devices to your workstation.
NOTICE:
When attaching external SCSI devices, be sure to terminate the last device
on the external SCSI bus.
Table 2
Serial I/O Pins
Pin No.
Signal
Description
1
DCD
Data Carrier Detect
2
RXD
Receive Data
3
TXD
Transmit Data
4
DTR
Data Terminal Ready
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
Request To Send
8
CTS
Clear To Send
9
RI
Ring Indicator