Metrologic Hand-Held Scanner Guide de l'utilisateur télécharger pdf (Page 42)

APPENDIX C (CONTINUED)

Pin Assignments for the MCA951

There is a 9-pin female D-type connector, located on the MCA, 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)

Pin Function Pin Function

1** OCIA Shield Ground 1** Shield Ground

2 RDATA 2 RS-232 Transmit Output

3 RDATA Return 3 RS-232 Receiver Input

4 Clock Out 4 IBM 4680 -B

5 Power/Signal Ground 5 Power/Signal Ground

6 Clock Out Return 6 IBM 4680 +A

7 Clock In Return 7 Clear to Send Input

8 Clock In 8 Request to Send Output

9* +5VDC Power to Scanner 9* +5VDC Power to Scanner

Version “14” (232) Version “15” (LTPN)

Pin Function Pin Function

1** Shield Ground 1** Shield Ground

2 RS-232 Transmit Output 2 RS-232 Transmit Output

3 RS-232 Receiver Input 3 RS-232 Receive Input

4 Data Terminal Ready Input 4 Light Pen Source (+5V Input)

5 Power/Signal Ground 5 Power/Signal Ground

6 Data Set Ready Output 6 Light Pen Data (Output)

7 Clear to Send Input 7 Clear to Send (Input)

8 Request to Send Output 8 Request to Send (Output)

9* +5VDC Power to Scanner 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 MS6720 Installation: Powered by External Power Supply

page 5)

**Pin 1 of the MCA provides a connection point for various ground/shield ground

configurations on different Metrologic products. Internal jumper JP2 of the MCA

gives end users the option of changing pin 1 of the DB9 into a no connect (NC).

Simply remove the jumper from the pins, then pin 1 of the DB9 becomes an open/no

connect pin.

***JP2 should ALWAYS be in place for OCIA applications

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Metrologic Hand-Held Scanner Guide de l'utilisateur Page 42