![Alcolizer WM4 User Manual Download Page 37](http://html.mh-extra.com/html/alcolizer/wm4/wm4_user-manual_2892565037.webp)
REF: WM4 User Manual V7.docx
Page 37
© Alcolizer Technology
15
Epsom TM20 Printer Setup
Alcolizer WM4 supports only the Epson TM-T20 USB model. There are some similar models
such as TM-T20ii, however these are not supported.
To setup the Epson TM-T20 USB model:
1.
Unpack printer.
2.
Remove any tape used to secure parts for transport, then fit paper roll.
3.
It is recommended to turn the WM4 off.
4.
Carefully open the WM4.
5.
Connect printer to the WM4 using USB cable supplied with the printer. Use any
available USB port located on the board.
6.
Close the WM4. Then, turn on the WM4 and the printer.
The printer should now be operational. Please refer to printer specifications for printer
configuration.
16
Breath Test Authorisation
Breath test authorisation is a feature that prevents the wallmount from performing a breath
test until it has received authorisation from an external agent (remote serial device, keypad,
etc). The authorising agent sends a code to the wallmount that allows the wallmount to
execute a single breath test. Once the test is performed the authorisation code and
authorisation source is logged with the breath test result in the event log and the wallmount
waits for authorisation to perform further tests. If a breath test is not performed within a
timeout period the authorisation expires and the wallmount must receive a new
authorisation code to perform further tests.
Authorising agents connect to the wallmount through authorisation channels. An
authorisation channel is a combination of a physical connection (serial port, ethernet port,
etc) and a software protocol operating over that physical connection.
•
The following authorisation channels are supported depending on model being used:
•
Two RS-232 serial ports (Serial 1 and Serial 2) running the
americium
serial protocol.
•
An attached Wiegand USB device running the
Wiegand
serial protocol.
•
Any number of direct network connections running the
americium
serial protocol.
•
HID input device attached to a USB port (keyboard, card reader, etc).
•
The
coin mechanism
hardware.
16.1
Serial Port Authorisation
The two RS-232 serial ports are activated with the americium serial protocol (v2) at all
times, whether test authorisation is enabled or not. This means that all breath test results
are sent by the wall mount on
both
serial ports.
If authorisation is enabled then an agent can send authorisation codes to the wall mount
on
either
serial port.