Advantech BB-422PP9TB Quick Start Manual

4
Biasing Resistors
The biasing resistors for the RS-422/RS-485 receiver are
4.7k Ohm resistors. These resistors are labeled R1 and R2
(See Figure 2). For further information on biasing, refer to
the "RS-422/485 Application Note" on the website.
Model BB-422PP9R - RS-422/485 Biasing Resistors
Model BB-422PP9TB - RS-422/485 Biasing Resistors
Document Number: 20BB710-10806-00_r1_BB-422PP9R_BB-422PP9TB_4919qsg
5
External Power Supply Use
(Model BB-422PP9TB only)
When using an external supply, the supply should be
connected only to specifically labeled power inputs (power
jack, terminal block, etc.).
Connecting an external power supply to the handshake lines
may damage the unit. Contact Advantech B+B SmartWorx
technical support for more information on connecting an
external power supply to the handshake lines.
Recommended Accessories
DB9 Male to DB9 Female Cable,
1.8 m length
Model# BB-9PAMF6
Power Supply, 12VDC, 6W,Stripped/
Tinned, International AC Input
(optional for BB-422PP9TB only)
Model# BB-SMI6-12-V-ST
www.advantech.com
707 Dayton Road | PO Box 1040 | Ottawa, IL 61350 USA
Phone: 1 (815) 433-5100 | Fax: 1 (815) 433-5109
www.advantech.com | E-mail: support@advantech-bb.com

QUICK START

GUIDE
BB-422PP9R
BB-422PP9TB
RS-422 Converter, Port-Powered
Before you begin, be
sure you have the following:
+ RS-232/422 Port-Powered Converter
+ DB9M to DB9F Adapter Cable (not included)
+ 12VDC, 6W Power Supply (not included,
optional for Model BB-422PP9TB only)
www.advantech.com
Fast and easy on the web: