International POS Ltd 7.4.3 Cameron House, White Cross, South Road, Lancaster. LA1 4XF. United Kingdom Tel: +44 (0)1524 388811 Fax: +44 (0)8700 523938 Web:www.iposltd.com, eMail:

Tech>Cash Drawer FAQ>Tysso Serial

Tysso PCD-005 Cash Drawer

Cash Drawer Technical Information

Serial Cash Drawer

The Tysso PCD005R Serial Cash Drawer connects to the serial port on the PC or POS terminal. A 9-pin D-type lead is supplied for this purpose. If you wish to connect to a 25-pin serial port a standard 9-25pin serial converter plug or lead can be used.

In order to power the serial cash drawer a separate 12v power supply is required. In the UK this is supplied as the moulded plug variety. Ensure that the polarity is correct and that the centre pin of the drawer connector is +12v.

9-pin D type Connector Pin Assignments

Pin	Name	Description
3	RXD	Activation data from host
5	GND	Ground
9	Status (RI)	Status of drawer opening switch Check through the RI status

Opening the drawer

The drawer is opened by sending data to the COM port. Ensure that the key is in the vertical position and that the COM port has been initialised for 300 baud, no parity, 8 data bits and 1 stop bit.

For example to open the drawer connected to COM1 from QBasic the following commands can be used:
OPEN "COM1:300,N,8,1" FOR RANDOM AS #1
PRINT #1, "0000000000"

The correct operation of the drawer can be checked easily at the Command prompt from Windows or DOS by entering the following commands:

MODE COM1:300,N,8,1
ECHO 01234567890 > COM1:
(replace COM1 with the appropriate port if the cash drawer is not connected to COM1:)

Higher baud rates can be used if necessary (up to 2400) but you should check for correct operation within your own environment.