M-S Cash Drawer 7193 - Manual (Page 52)

Communication 7193 Owner’s Guide
May 1996 48
RS-232C Technical Specifications
This section describes the pin settings for the connectors and the RS-232C
interface parameters.
Connectors
The following illustration shows the RS-232C communication connector and pin
assignments. The connector is a 9-pin male D-shell connector and is located in the
hollow cavity under the printer.
Function Function Pin Numbers
Logic Ground 5
DTR 4
TXD 3
RXD 2
Not Used 1
9 Not Used
8 CTS
7 RTS
6 DSR
Shell - Frame Ground
Printer View (Male)
With RS-232C, the 7193 is always remotely powered. The following illustration
shows the power cable connector and pin assignments. The power cable
connector is 6-pin mini DIN plug and is located in the small cavity under the
printer at the front.
Return 5
Return 3
Return 1
Shell Frame Ground
6 +24 Volts
4 +24 Volts
2 +24 Volts
Pin View End