Campbell Scientific MD485 RS-485 Multidrop Interface - Manual (Page 24)

Appendix A. Phone to MD485 Network
1. HARDWARE REQUIREMENTS
a. MD485s
b. COM220
c. PS100 with A100
d. Transformer (CSI Item # 9591) or solar panel
e. Three SC12 cables (one included with each MD485 and one with
COM220)
f. CABLE2TP cable
2. TRANSPARENT COMMUNICATION (POINT-TO-POINT)
PC-Modem----COM220-PS100 with A100-MD485---MD485-DL
LoggerNet Setup
a. Setup:
ComPort_1
PhoneBase
PhoneRemote
PakBus Port (PakBus dataloggers only)
CR1000
b. ComPort_1 – default settings
c. PhoneBase
1) Modem Type – specify PC's phone modem
2) Maximum Baud Rate – 9600
3) Extra Response Time – 0 s
d. PhoneRemote – input base site’s phone number
e. PakBus Port – defaults
f. 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
A-2