Oki MC770 series Maintenance Manual - page 22

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Oki  Data  CONFIDENTIAL

1. Configuration

1.5.5  Specification of ACC interface

1) Connector

Printer side:  USB A receptacle (female)

Downstream port

UBA-4R-D14C2-4D(LF)(SN) (JST Mfg. Co.,Ltd) or 

                    equivalent

Cable side:  USB A plug (male)

2)  Interface signals

Contact No.

Signal Name

Function

1

VBUS

 Power supply(+5V)

2

D-

 For data transfer

3

D+

 For data transfer

4

GND

 Signal ground Shell

Shell

Shield

 Shield

3)  Conector pin arrengement

4)  Connecting device

Card reader (Option)