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FAX-L1000 Chapter 4: Maintenance and Service
TWINS board (J39) ,/ ISDN G4 board (J1) (FAX-L1000 ISDN KIT)
J39 J700 Signal name Description
A13 . A8 PD6 Data signal
A14 . A7 PD5 Data signal
A15 . A6 PD4 Data signal
A16 . A5 PD3 Data signal
A17 . A4 PD2 Data signal
A18 . A3 PD1 Data signal
A19 . A2 PD0 Data signal
A20 / A1 nSTROBE Strobe signal
B1 / B20 nAUTOFD Auto feed signal
B2 , B19 nFAULT Fault signal
B3 / B18 nINIT Initialize signal
B4 / B17 nSELECTIN Select in signal
B5 . B16 GND Ground
B6 . B15 GND Ground
B7 . B14 GND Ground
B8 . B13 GND Ground
B9 . B12 N.C Not connected
B10 . B11 N.C Not connected
B11 . B10 N.C Not connected
B12 . B9 N.C Not connected
B13 , B8 N.C Not connected
B14 , B7 N.C Not connected
B15 . B6 GND Ground
B16 . B5 PSPOUT Speaker signal
B17 , B4 N.C Not connected
B18 / B3 N.C Not connected
B19 , B2 CICNT CICNT
B20 . B1 N.C Not connected
TWINS board (J43) ,/ ISDN G4 board (J3) (FAX-L1000 ISDN KIT)
J43 J3 Signal name Description
1 . 8 N.C Not connected
2 . 7 N.C Not connected
3 / 6 24V FAX-L1000 ISDN KIT drive voltage
4 . 5 GND Ground
7 / 2 12V Logic drive voltage
8 . 1 GND Ground
TWINS board (J43) ,/ G4 Relay board (J1) (FAX-L1000 ISDN KIT)
J43 J1 Signal name Description
1 / 1 5V Logic drive voltage
6 . 2 GND ground