Pin Assignments for the MCA (DEC9S). Metrologic Hand-Held Scanner

Pin

5

6

7

1

2

3

4

8

*9

Pin Assignments for the MCA951 (DEC9S)

Located on the MCA is a 9-pin female D-type connector used to connect the

MCA to the host device. The output signals on the 9-pin host end of the MCA are dependent upon which version of the scanner that is being used. The following is a list of the pin assignments for the different versions:

Version “9” (OCIA) Version “11” (46XX)

Function

OCIA Shield Ground

RDATA

RDATA Return

Clock Out

Power/Signal Ground

Clock Out Return

Clock In Return

Clock In

+5VDC Power to Scanner

Pin

5

6

7

1

2

3

4

8

*9

Function

Shield Ground

RS-232 Transmit Output

RS-232 Receiver Input

IBM 4680 -B

Power/Signal Ground

IBM 4680 +A

Clear to Send Input

Request to Send Output

+5VDC Power to Scanner

7

8

5

6

9

1

2

3

4

Version “14” (232)

Pin Function

Shield Ground

RS-232 Transmit Output

RS-232 Receiver Input

Data Terminal Ready Input

Power/Signal Ground

Data Set Ready Output

Clear to Send Input

Request to Send Output

+5VDC Power to Scanner

Version “15” (LTPN)

1

2

3

4

5

6

7

8

Shield Ground

RS-232 Transmit Output

RS-232 Receive Input

Light Pen Source ( +5V Input)

Power/Signal Ground

Light Pen Data (Output)

Clear to Send (Input)

Request to Send (Output)

*9 +5VDC Power to Scanner

*When the host supplies power to the scanner, this is the pin assignment for the +5VDC for the scanner. If, in the application, the host device will supply the power necessary for the scanner, reposition an internal jumper within the MCA and plug the 4 position ground jumper to the power supply connector for FCC and ESD purposes. (Refer to Scanner Installation: Powered by

External Power Supply page 6).

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