User`s guide

100-8006-152G AirborneDirect™ Serial Bridge User’s Guide Page 83

Quatech, Inc. Confidential

This appendix lists the specifications of the AirborneDirect™ Serial Bridge.

Table 16. Specifications

Serial Interface – standard package

Interface:

Selectable RS-232, RS-422, or RS-485

Connector:

DB9 (Male DTE)

Flexible stranded copper conductor cable

Data Rates:

RS-232: 300 to 230.4 Kbps

RS422/485: Up to 921 Kbps

Characters:

7 or 8 bits

Parity:

Odd, Even or None

Stop Bits:

1 or 2

Flow Control:

None, Hardware (RTS/CTS), or Software (Xon/Xoff)

Pin Assignments:

DB9

RS-232 RS-422 RS485

(4-Wire)

RS485

(2-Wire)

1 NC RxD+ RxD+ NC

2 RxD RxD- RxD- -Tx/-Rx

3 TxD TxD+ TxD+ +Tx/+Rx

4 NC TxD- TxD- NC

5 GND GND GND GND

6 NC RTS- NC NC

7 RTS RTS+ NC NC

8 CTS CTS+ NC NC

9 NC CTS- NC NC

APPENDIX C

SPECIFICATIONS