Vac/16, Vdc/16, And Vdc/8P Asynchronous Serial Port Connectors - Data General AViiON Series Customer Documentation

External Device Connector Pin Assignments
Table C–2 Cluster Controller Power Cords (VDC/8P and VDC/16)
Voltage (V ac)
100
120
(North American
standard)
240 40
220 0 0
NOTE: Each cluster controller package includes a 100/120 volt power cord, shipped with the
controller box. If your site requires 220 or 240 volts ac, make sure you received the
correct number and type of additional power cords; do not attempt to use the 100/120
volt ac cords.
VAC/16, VDC/16, and VDC/8P
Asynchronous Serial Port Connectors
Serial devices connect to the serial ports through RS–232–C 25-pin female DB25
connectors. Asynchronous connectors are located either on a VDA/128 (and
VDA/255) cluster box or on a VAC/16 junction box. Figure C–1 shows the signals
and pin numbers for these asynchronous connectors.
1
14
Asynchronous device
connector
(female)
25
13
Figure C–1 Asynchronous Serial Connector Signals
C-4
Part No. Frequency (Hz)
NA 50/60
NA
109–813
109–809
109–812
109–811
109–815
109–810
Pin
1
2
3
4
5
6
7
8
20
< indicates received by controller
> indicates transmitted from controller
Power Suffix
–1
60 none
50 –5
50 –6
50 –7
50 –8
50 –9
50 –0
Signal
Chassis Ground (CG)
Transmit Data (TxD) <
Receive Data (RD) >
Request to Send (RTS) <
Clear to Send (CTS) >
Data Set Ready (DSR) >
Signal Ground (SG)
Data Carrier Detect (DCD) >
Data Terminal Ready (DTR) <
014–001867