Campbell Scientific MD485 RS-485 Multidrop Interface User Manual
Page 30

Appendix B. RF401 to MD485 Network
1. HARDWARE
REQUIREMENTS
a. MD485s 
b. RF401s 
c. PS100 with A100 
d. Transformer (CSI Item #15966) for base RF401 
e. Transformer (CSI Item # 9591) or solar panel for PS100 
f. 
Three SC12 cables (one included with each MD485 and one with 
RF401) 
g. CABLE2TP
2. TRANSPARENT
COMMUNICATION
(POINT-TO-POINT)
PC-RF401----RF401-PS100 with A100-MD485---MD485-DL
LoggerNet Setup
a. Setup:
 ComPort_1 
 
PakBus Port (PakBus dataloggers only)
CR1000
b. ComPort_1 – default settings
c. PakBus Port – defaults (PakBus dataloggers only)
d. CR1000 – default settings, schedule collections as desired
MD485 Configuration
a. Base MD485
1) Active Ports – “CS I/O and RS-485” 
2) Communication Mode – “Transparent Communication” 
3) CS I/O Port Configuration – “Modem to Modem w/o 
Datalogger”
4) RS-485 Port Configuration – Desired baud rate
b. Remote MD485
1) Active Ports – “CS I/O and RS-485” 
2) Communication Mode – “Transparent Communication” 
3) CS I/O Port Configuration – Modem Enable 
4) RS-485 Port Configuration – Desired baud rate 
RF401 Configuration
The RF401s may be left in their default settings. However, if there is a 
neighboring RF401 network, you should change the Hopping Sequence of 
base and remote RF401s to a new setting to avoid interference. 
B-2
