S
CANNER
T
ERMINATIONS
IS4125-47 Connector Pin Assignments
Honeywell 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 12
Figure 7
Pin
Signal
Name
Function
1 VCC
Input.
5VDC (± 0.25V)
This requires 58 mA in standby and 120 mA peak.
2
Ground
Signal and power ground.
3 Receive
Input
. Keyboard Wedge receive data from host.
4* PC
Data
PCData
5* PCClock
PCClock
6*
KB Clock
KB Clock
7 Transmit
Output.
RS232 transmit data from the scan engine.
8*
KB Data
KB Data
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.
). 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, Honeywell internal use
only.
12 LED
-
Negative connection for scan mode indicator.
An external pull-up and LED are suggested. Maximum
current is limited to 25 mA. This line is active low when
the scanner is in the scanner mode (
i.e
. scan line is
present).
* Pins 4, 5, 6 and 8 main function is to transmit scan codes between the
Keyboard Wedge and PC.
18
