MMF POS RS-232 User Manual

MMF POS Multi-Serial
Interface

May 1,

Multi-Serial Interface Operator’s Manual

2010

MMF POS

www.mmfpos.com

Phone: [phone]

MMF Multi-Serial Interface
INTRODUCTION

The MMF Multi-Serial Interface enables the cash drawer to be controlled by a serial RS-232 output port in the
following configurations:

• Standard serial dedicated; one cash drawer connected to the PC serial port.

• Serial non-dedicated or daisy chain mode; two cash drawers can be connect ed to the s am e serial port or a

serial peripheral can be connected to the cash drawer using the same serial port.

With both the serial non-dedicated and serial ded icated configurati ons it is possible to select via DIP switches the
following options:

 Select a specific or random character to open the cash drawer.
 Configure RS-232 settings.
 Select the open/close drawer status signal for each cash drawer
 Compatible with 12VDC powered serial ports.

SETTING UP THE CASH DRAWER
  



Figure 1

 RS-232 serial connection

Provides a programmable RS -232 connection to the RS-232 serial port of a host device like a computer or terminal.
Optional cash drawer serial cables and adaptors:

 P/N: 2261 99SD9F06 00 -Std. cable DB-9 female to DB-9 male.
 P/N: 2261 99ND9F06 00 - Cable to Daisy-Chain 2 cash drawers DB-9 female to DB-9 male and DB-9 male.
 P/N: 2261 99ND9FA6 00 - Cable to Dais y-Chain 2 or more cash drawers or to Daisy-chain a ser ial periph eral

such as a printer or other device. DB-9 female to DB-9 male and DB-9 male.

 P/N: 2261 99DB9250 00 -Serial Adaptor to convert a DB-9 Male to a DB-25 Female.

PIN 1: DCD - Data Carrier Detect
PIN 2: RXD - Receive Data
PIN 3: TXD - Transmit Data
PIN 4: DTR - Data Terminal Ready
PIN 5: GND - Signal Ground
PIN 6: DSR - Data Set Ready
PIN 7: RTS - Request to Send
PIN 8: CTS - Clear to Send
PIN 9: RI - Ring Indicator

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SW2

SW3

SW1

P2

JP1

SIGPWR

SW3

SW2

SW1

P1

J1

P3

3 2 1

ON

ON

 LED Signal Status Panel

LED #4 (top-red) DTR / DSR / DCD Status; LED is ON when there is activity on any of these lines
LED #3 (red) RTS / CTS Status; LED is ON when there is activity on any of these lines
LED #2 (red) Drawer Status. Open / Close inner drawer indicator.

LED #1 (green) Power good when ON solid / Data received when blinking

 Supply Voltage Power connector

+12 VDC γ 5% 0.8 A.

Plug required for Power connector:

γ

OD: 5.5mm
ID: 2.1 mm
Length: 8.75 mm

0.1mm - +

γ

0.1mm

γ

0.5mm

 DIP Switch settings

To modify the cash drawer settings locate the serial interface module plate on the back of the cash drawer as
shown on Figure 1, remove the two side screws to access the serial PC board and locate the three banks of DIP
switches SW1, SW2 and SW3 as shown in Figure 2.

OFF

OFF

Figure 2

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