Metrologic Instruments IS4110 用户手册

 

 

17

S

CANNER 

T

ERMINATIONS

 

 

 

 
Metrologic provides a low profile ZIF 12-pin

 

connector to connect to a 1 mm x 12 position 
FFC/FPC cable. The pin assignments are as follows: 
 
 

 

1 VCC 

Input. 5 VDC (± 0.25V)  
This requires 25 mA in standby and 130 mA peak. 

2 

Ground 

Signal and power ground. 

3 Receive 

Input. RS232 receive data from host.  
Nominal ±12V signals. 

4 

Light Pen 

Source/DTR IN 

Input. Either light pen source voltage (typical:+5VDC) when 
configured for wand emulation or RS232 Data Terminal 
Ready signal from host. Nominal ±12V signals. 

5 RTS 

Output.  
RS232 Ready to send signal from the scan engine. 

6 

Light Pen DATA 

Output. Wand emulation data, open collector output from 
the scan engine. 

7 Transmit 

Output. RS232 transmit data from the scan engine.  
Nominal ±12V signals. 

8 CTS 

Input. RS232 Clear to send signal from host.  
Nominal ±12V signals. 

9* 

Good Read 

Indicator 

Output. 5V high with a 2 kHz pulse. This drain is the pin of a 
PFET type transistor that can source approximately 100 mA 
of current. This output is the connection for an LED or other 
indicator (i.e. beeper+).  It is recommended that the indicator 
is terminated directly to ground. 

10* 

Beeper -  

Input. Collector of an NPN transistor that can sink 
approximately 100 mA of current.  A current limiting pull-up 
resistor and Piezo type transducer (QMB- 111PXN or 
equivalent) is recommended. 

11 Reserved 

Input 

Input. Do not connect to this pin.  This pin is for Metrologic 
internal use only. 

12 LED 

- 

Negative connection for LED. An external pull-up and LED 
is suggested. Maximum current is limited to 25 mA. This line 
is active low when the laser diode is active. 

 

*  Pins 9 and 10 can be used together to form a push-pull type circuit. Pin 9 

becomes the Beeper + and Good - Read source whereas Pin 10 supplies the 
pathway to ground..  

 

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