
SECTION 3 - Interface Specifications
Rev C
48
SATO M-8400RV Service Manual
3-4 RS232C Serial Interface (Cont.)
Electrical Specifications
Connector
'%6)HPDOH
Cable
'%30DOHIWPD[LPXPOHQJWK)RUFDEOH
FRQILJXUDWLRQUHIHUWR&DEOH5HTXLUHPHQWVDSSURSULDWHWRWKH
56&SURWRFROFKRVHQ
Signal Levels
+LJK 9WR9
/RZ 9WR9
Pin Assignments
RS232C Interface Signals
PIN
DIRECTION
SIGNAL DESCRIPTION
1
Reference
FG (Frame Ground)
2
To Host
TD (Transmit Data) - Data from the printer to the host computer.
Sends X-On/X-Off characters or status data (Bi-Directional protocol).
3
To Printer
RD (Receive Data) - Data to the printer from the host computer.
PIN 13
PIN 1
PIN 25
PIN 14