March Products 120 III (PC620) - Manual (Page 68)

User Manual version 2503
LIBRA 120 III (PC620 Intel 815E) 4-58
4.1.5.8. FDD1: FDD connector
Pin # Signal Pin # Signal
1 VCC 2 INDEX#
3 VCC 4 DSA#
5 VCC 6 DSKCHG#
7 NC 8 NC
9 NC 10 MOA#
11 NC 12 DIR#
13 RWC# 14 STEP#
15 GND 16 WD#
17 GND 18 WE#
19 GND 20 TRAK0#
21 GND 22 WP#
23 GND 24 RDATA#
25 GND 26 HEAD#
4.1.5.9. COM2:
COM2 is a RS-232, 422 or 485, selected via BIOS setup.
Pin # Signal Pin # Signal
1 DCD/422TX- 2 DSR
3 RXD/422TX+ 4 RTS
5 TXD/422RX+ 6 CTS
7 DTR/422RX- 8 RI
9 GND 10 KEY
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