Gasboy CFN III Manager Manual V3.6 - Manual (Page 308)

Dialout Communications Modems
Page F-6 MDE-4871 CFN III Manager’s Manual for Windows® XP Embedded - Version 3.6 · August 2010
The modem example given here is a Hayes 2400 Smartmodem. Most Hayes compatible
modems have similar features.
Figure F-1 shows the indicator lights on the modem. These are
used to diagnose problems in communications.
Figure F-1: Indicator Lights on Hayes 2400 Smartmodem
HS AA CD OH RD SD TR MR
After the CFN3 application has initialized the modem, only the TR (Data Terminal Ready)
and MR (Modem Ready) lights must be on steadily if the modem cable has no bad
connections at this point.
An on light is shown in lowercase letters. Figure F-2 shows how the modem looks when the
site first reboots and before the network handler task initializes the modem.
Figure F-2: Indicator Lights on Modem - aa, tr, mr On
HS aa CD OH RD SD tr mr
When the CFN3 application initializes the modem, the SD (Send Data) and RD (Read Data)
lights must flicker. These indicate when data is being sent or received by the site.
After the modem is initialized, the lights must look as in Figure F-3 . Every few seconds, the
RD and SD lights must flicker. If this is not happening, the network software may not have
been initialized and the network handler is stopped until this step is done. Refer to the
specific Debit/Credit manual for setup information for your router.
If the AA (Auto-Answer) light is on, the modem has not been initialized for network
communications. Also, check the port setup. The host modem might be connected to the
remote CFN port.
Figure F-3: Indicator Lights on Modem - hs, tr, mr On
hs AA CD OH RD SD tr mr