USWD500 User’s Manual Version 3.0
- 40 -
Hang-up/Disconnect Procedure
Hardware hang-up (RTS toggle) is the default setting invoked after the
&F
command during initialization. Software hang-up (
+++ATH2
) requires that the
AT&D0
command be sent during the initialization. For hardware hang-
up/disconnect, toggle the RTS line for no less that 10ms. For software hang-
up/disconnect, send the
+++ATH2
command. When doing a software hang-
up/disconnect, there should be a delay equal to, or greater than, the value in
register
S12
between issuing the
+++
command and issuing the
ATH2
command.
Hardware or software hang-up or disconnect will respond with a
<stx>0<etx>{lrc}
packet. After receiving the disconnect response, the program should proceed just
as it would during a dial-up transaction.
Note 1:
ATS80=
port number
sets the UDP port number used on the device.
The port number in
S80
and the port number on the end of the
ATD
command must match in UDP mode.
Note 2:
AT\N
<
side preference
> specifies whether A side, B side, or some
combination of both will be used.
1
=A side only,
2
=B side only,
3
=A
side preference,
4
=B side preference.
Constant Monitoring of Signal Status
It is possible to perform a software signal status check from the POS terminal. You
can accomplish this by issuing the
AT!D
command and receiving the
<stx>RNI0320432<stx>{lrc}
response packet. By monitoring the signal status
with software, a signal status display can be created on the POS terminal's
display. The
AT!D
command can also be implemented for diagnostic use because
it shows registration status, in-out range status, signal strength, and channel
number.
Suggested Terminal Configuration
Most POS terminal applications will have a configuration section which can be
altered from the keypad. Here are some suggested settings:
#CreditCardIP =
111.222.333.444
#CreditCardPort =
8000
#DebitIP =
666.777.888.999
#DebitPort =
8006
Содержание USWD500
Страница 46: ...USWD500 User s Manual Version 3 0 42 ...
