Campbell Scientific MD485 RS-485 Multidrop Interface - Manual (Page 48)

Appendix D. Digital Cellular Modem to MD485 Network
b. IPPort – Internet IP address/domain name and the Port number (the
Raven template file configures the port to be 3001).
c. PakBus Port—defaults
d. Dataloggers – corresponding PakBus address, other setting defaults,
schedule collections as desired
MD485 Configuration
a. Base MD485
1) Active Ports – “RS-232 and RS-485”
2) Communication Mode – “PakBus Networking”
3) RS-232 Port Configuration – Desired baud rate
4) RS-485 Port Configuration – Desired baud rate
b. Remote MD485
1) Active Ports – “CS I/O and RS-485”
2) Communication Mode – “PakBus Networking”
3) CS I/O Port Configuration – SDC Address 7 or SDC Address 8
4) RS-485 Port Configuration – Desired baud rate
5. HARDWARE
After configuring LoggerNet or PC208W and the DM485s, you are ready
to set up hardware. Attach the null modem cable to the RS-232 ports of
the digital cellular modem and the base MD485. Attach the wall
transformer to the DC Pwr jack of the base MD485.
Remote MD485s normally connect to datalogger CS I/O ports via SC12
cables. Powering up the datalogger will start the MD485 operating.
Connect the CABLE2TP cable between the RS-485 ports of the base and
remote MD485 s and you are ready to connect to the datalogger.
D.2 Redwing100 and Redwing105 Digital Cellular
Modems
Where a Redwing100 or Redwing105 digital cellular modem to MD485 Base
is desired, the following configurations will provide communications in
transparent mode, with MD9 Emulation or PakBus Networking.
1. HARDWARE REQUIREMENTS
a. MD485s
b. Redwing100 or Redwing105 CDMA modem
c. Transformer (CSI Item #15966)
d. Null modem cable (CSI Item #18663)
e. SC12 cables (one included with each MD485)
f. CABLE2TP
cable
D-4