RS232 Pin Out
Pin 2 is for receiving information, pin 3 is for transmission of data and pin 5 is the ground.
Null Modem DB 9 Serial Cable (female to female).
1. N.C.
2. Receive Data (From PC to ZonePRO)
3. Transmit Data (From ZonePRO to PC)
4. Pulled Hi
5. Ground
6. N.C.
7. RTS (From DriveRack to PC) (Optional)
8. CTS (From PC to DriveRack) (Optional)
9. N.C. Chassis. Shield
NOTE:
For a minimum configuration cable, you will need Pins: 2,3 and 5.
The ZonePRO is considered a master, so to interface to a PC, the cable should have pins 2 and 3 crossed.
If you are running long cables, it will be helpful to use a shielded cable. Connect the shield to the chassis of the connector at both ends.
Pin-Out view of the required pins in a null-modem cable.
If you're in need of a trustworthy USB to Serial adapter, Tripp-Lite and USB Gear are also some trust worthy brands.
USB Gear, Tripp Lite
If you have a Best Buy near you, they sell one made by Insignia that has been known to work well.
Insignia
To Purchase a Null-Modem Cable, Follow This Link.
https://www.staples.com/Tripp-Lite-6-Null-Modem-Cable-Gold/product_2418401?cid=PS:GooglePLAs:2418401&ci_src=17588969&ci_sku=2418401&KPID=2418401&gclid=CjwKCAjw7LX0BRBiEiwA__gNw1FvuX-kpkGTNk8NoPe-q9gjZl4cwnd9pR-hgxh4amMdQaY-k0EztBoCpDYQAvD_BwE
Crossover Ethernet
For models that have the Ethernet Port, here's the pin out to make an Ethernet crossover cable.
Pin-Out view of our supplied yellow crossover Ethernet cable.