Octopus Cables - Xyplex Terminal Server 720 Manual

I/O and Cabling Considerations

3.3.3 Octopus Cables

An octopus cable fans out the 8 serial ports from a 50-pin Telco connector to DB25 connectors
(6-pins used per connector). An octopus cable can be ordered with either 8 male or female
DB25 connectors as shown in Figure 3-12. The following cable lengths are available for both
octopus cable types:
• 0.91 m (3 ft)
• 1.83 m (6 ft)
• 7.62 m (25 ft)
• 15.24 m (50 ft)
Terminal Server
720 I/O Module
Figure 3-12. Octopus Cable (Male and Female), Connected to I/O Module.
3-34
Octopus cable: 8 DB-25
(male or female) to 50-pin
male Telco
22 RNG
DCD 8
20 DTR
GND 7
RCV 3
XMT 2
MALE PINOUTS
RCV 2
XMT 3
GND 7
20 DCD
DTR 8
22 RNG
FEMALE PINOUTS
0021