Rice Lake TicketPress - Installation and Operation Manual - Manual (Page 29)

RS-422 And 20mA Current Loop Interfaces 25
6.0 RS-422 And 20mA Current Loop Interfaces
The TicketPress is supplied with a standard RS-232 serial interface. It may also be equipped with an optional
RS-422 or 20mA Current Loop interface. If an optional interface was factory installed, it will be selected as the
currently active interface and the RS-232 interface will be ignored. To change which interface is active, refer to
the configuration section on page .
If you have purchased the RS-422 or 20mA Current Loop interface after purchasing your TicketPress , the
following instructions describe how to install the interface. If the interface is already installed, the description for
each interface follows the installation instructions.
6.1 Optional Interface Installation
WARNING To avoid electrical shock, turn printer off and unplug before installing optional interface.
To install either an RS-422 or a 20mA Current Loop interface, perform the following steps.
Note
The TicketPress and the optional interfaces contain devices that may be damaged by static
electricity discharge. Please follow common static protection procedures. Damage caused by
static discharge is not covered by the
TicketPress warranty.
Figure 6-1. Cover Screws on Bottom of Printer
1. Turn the printer upside down and remove the two cover screws near the front of the printer.
Remove
Loosen
Figure 6-2. Cover Screws on Bottom of Printer