GE T2100 Service Manual page 67

J3-3
J3-4
J3-5
J3-6 +VUNREG
J3-7 ISOGND
J3-8
J3-9
PIN #
J4-1
J4-2
J4-3
J4-4
J4-5
J4-6
J4-7
J4-8
J4-9
PIN #
J6-1 +5V ISO
J6-2 ISOGND
J6-3 +VUNREG
Revision A
Theory of Operation: Processor Board (PCB) Theory
Table 12. J3 Host DB-9 COnnector
NC NA
RXLO RS422
RXHI RS422
PWR
COM
TXLO RS422
TXHI RS422
Table 13. J4 Drive DB-9 Connector
NAME TYPE
NC NA
RX- RS422
TX- RS422
NC NA
DGND COM
NC NA
TX+ RS422
RX+ RS422
NC NA
Table 14. J6 Isolated Power Input Connector
NAME TYPE
PWR
COM
PWR
GE T2100 Treadmill
NA
IN
IN
OUT
OUT
OUT
OUT
IN/OUT
NA
IN
OUT
NA
OUT
NA
OUT
IN
NA
IN/OUT
IN
IN
IN
2021403-031
NA NA
9600bps Host RS422 Serial
Comm
9600bps Host RS422 Serial
Comm
DC ISO Power Supply
DC ISO Gnd Supply
9600bps Host RS422 Serial
Comm
9600bps Host RS422 Serial
Comm
FREQ COMMENT
NA NA
9600bps Drive RS422 Serial
Comm
9600bps Drive RS422 Serial
Comm
NA NA
DC Digital Gnd Supply
NA NA
9600bps Drive RS422 Serial
Comm
9600bps Drive RS422 Serial
Comm
NA NA
FREQ COMMENT
DC ISO Power Supply
DC ISO Gnd Supply
DC ISO Power Supply
5-17