GE 90-30 PLC Series Installation And Hardware Manual page 366

Example of Cable Configurations
Examples of cable configurations required when using the converter can be found in Appendix C.
Specifications for the converter are shown in the following table.
Table B-4. Specifications for IC690ACC900 Converter
Power Requirements:
Voltage
Current
RS-422/RS-485 Interface Cables:
Maximum cable length
Cable Type: *
6 feet (2m)
30 feet (10m) **
≥ ≥ ≥ ≥ 30 feet, up to 1000 feet (300m) ]
Connector Type
RS-232 Interface Cable:
Maximum cable length
Up to 50 feet (15m)
Connector Type
* Catalog numbers are provided as suggestions only. Any cable having the same electrical
** For distances over 10 feet, the +5 volt DC logic power source must be provided externally by
GFK-0356Q Appendix B IC690ACC900 Converter
characteristics is acceptable. It is strongly recommended that you use stranded wire. Since it
is sometimes hard to find a cable with the desired number of twisted pairs (the Belden 9309
has an extra pair), you may end up with a cable with extra pairs.
connecting an external power supply to the +5V and SG (0V) connections at the converter end
of the cable. The +5V pin at the PLC connector end of the cable must not be connected to
the cable. The +5V and SG connections from the external power supply must be isolated from
its own power line ground connection. Ensure that there is no connection between the external
supply and the PLC except the SG cable connection.
5 volts DC, +5%
170 mA, ±5%
1000 feet(300m)
Cable type: Belden 9508, AWG #24 (0.22 mm
Cable type: Belden 9309, AWG #22 (0.36 mm
Same cable as for 30 feet.
15-pin D-type Male Subminiature (both ends)
50 feet (15m)
25-pin D-type Female Subminiature (converter end) 9-pin, 15-pin, or
25-pin (depending on type of connector on your serial device) D-type
Female Subminiature (programming device end)
B
2
)
2
)
B-9