Appendices Appendix. C Pin Assignment
C-24 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521)
CN board
C.32 CN4400 Bluetooth I/F connector (20-pin)
Table C-32 Bluetooth I/F connector (20-pin)
Pin No. Signal Name I/O Pin No. Signal Name I/O
1 GND - 2 N.C. -
3 BTMDL-P3N O 4 N.C. -
5 N.C. - 6 N.C. -
7 N.C. - 8 BTRST-S3P I
9 N.C. - 10 N.C. -
11 GND - 12 N.C. -
13 (GND) I 14 WCHCLK-P3P O
15 N.C. - 16 USBP4-S3P I/O
17 USBBP4-S3N I/O 18 WCHDAT-P3P I
19 N.C. - 20 BT-P3V -
1T GND - 2T GND -
C.33 CN4621 USB I/F connector (for relay of port 6) (6-pin)
Table C-33 USB I/F connector (for relay of port 6) (6-pin)
Pin No. Signal Name I/O Pin No. Signal Name I/O
1 GND - 2 GND -
3 - side I/O 4 + side I/O
5 GND - 6 GND -
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