Campbell Scientific Raven110 GPRS/EDGE Digital Cellular Modem - Manual (Page 8)

Raven110 GPRS/EDGE AirLink Cellular Modem
SC105 interface connects the modem to a datalogger’s CS I/O port;
recommended for dataloggers with the PakBus Operating System.
SC932A interface connects the modem to the CS I/O port;
recommended for dataloggers with the Mixed-Array Operating System.
PN 18663 null modem cable connects the modem to a datalogger's
RS-232 port (not compatible with the 21X, CR510, CR10X,
or CR7 dataloggers).
FIGURE 4.2-1. Modem Interface Options.
4