SUBJECT:

RS-232 Null Modem Cable Specifications

ANSWER:

NDC AP RS-232 Null Modem Cable Specifications
are as follows:

Cable length:
Typical - 180 cm
Maximum - 600 cm
Data rate: 38.4 Kbps
Stop bit: 1
Character length: 8 bits
Parity check: No

(I) 9 pin-9 Pin Cable

9 pin-9 Pin Cable connector:
AP side: female 9 pin D-type connector
PC side: female 9 pin D-type connector

9 Pin-9 Pin Pinouts:
AP 9 pin D-type to PC 9 pin D-type

pin 2 RXD -> pin 3 TXD
pin 3 TXD -> pin 2 RXD
pin 4 DTR -> pin 6 DSR
pin 5 GND -> pin 5 GND
pin 6 DSR -> pin 4 DTR
pin 7 RTS -> pin 8 CTS
pin 8 CTS -> pin 7 RTS

(II) 9 pin-25 Pin Cable

9 Pin-25 Pin Cable connector:
AP side: female 9 pin D-type connector
PC side: female 25 pin D-type connector

9 Pin-25 Pin Pinouts:
9 pin D-type to 25 pin D-type

pin 2 RXD -> pin 2 TXD
pin 3 TXD -> pin 3 RXD
pin 4 DTR -> pin 6 DSR
pin 5 GND -> pin 7 GND
pin 6 DSR -> pin 20 DTR
pin 7 RTS -> pin 5 CTS
pin 8 CTS -> pin 4 RTS