Specifications

C•CURE apC/L Technical Manual
Connecting the apC/L to the Host
2-17
Modems for dialup mode apC/Ls
You can use dialup mode to connect an apC/L at a remote location to the
host using standard, voice-grade telephone lines instead of hardwired or
leased telephone lines. For many of your applications, dialup mode can be
more convenient and cheaper than other communications modes.
In dialup mode, the apC/L modem must use DTR.
The pins used for dialup are listed in Table 2.10. See Table F.3 in
Appendix F for information about DIP switch settings.
CAUTION
Connect DTR to the apC only if you are connecting
the apC/L to a modem. Using DTR with an apC/L
connected directly to the host can result in hardware
damage.
Table 2.10 apC/L to Dialup Modem Connections
apC/L P10
Pin #
DB-25 Pin
#
Signal
1 2 Data transmit (TX)
2 20 DTR (connected for dialup only)
(3) (5) Required for some modems; close
SW1:3 if this wire is used. Do not
use this wire for the MultiTech
modems.
4 3 Data receive (RX)
5 7 Ground (GND)
apcl.bk Page 17 Monday, May 15, 2000 3:21 PM