M-S Cash Drawer EP-125KSI Instructions

M-S Cash Drawer Corporation 

KSI type interface instructions

Introduction 

The M-S Cash Drawer KSI trigger board enables the cash drawer to be controlled 

directly by the compatible PC's serial port. Two cable configurations are available 

allowing the drawer to be operated as a "dead-end" device or as a "parasite" device. 

The interface is programmable allowing opening character selection. Multiple drawers 

may be "Daisy Chained" together. The interface is capable of reporting the drawer's 

status. 

Cable Options 

Two cable configurations are available: Dead-End and Parasite.  

Dead-End cables are available with either a DB9 pin or a DB25 pin female connector for 

direct connection to the serial port. A DB25 pin male version is also available allowing 

connection to a DCE type auxiliary port (i.e. Wyse terminal).  

KSI Dead-End Cabling Specifications 

Mini Din 

Connector  

Computer Serial Port 

Color 

Pin # 

25 Pin 

9 Pin 

Definition 

Brown 

Shell 

1 

5 

FG 

Green 

6 

2 

3 

TxD 

Blue 

1 

3 

2 

RxD 

Red 

2 

4 

7 

RTS 

Black 

7 

7 

5 

SG 

White 

8 

22 

9 

RI 

Jumper 1* 

- 

4-5 

7-8 

RTS-CTS 

Jumper 2* 

- 

6-8-20 

1-4-6 

DSR-DCD-DTR 

* Jumpers simulate hardware handshaking