79
DBP - Rev 6/93
RS485 COMMUNICATION
9
8
3
4
5
JC
COMPUTER
T/R+
T/R-
6
7
1
2
AMP. No 1
9
8
3
4
5
JC
6
7
1
2
AMP. No 2
AMP. No 32
9
8
4
5
JC
NOTES:
2. PIN No.1 TRANSMIT/RECEIVE CONTROL
3. PIN No.4 +5V
1. SHIELDING MUST BE CONNECTED AT COMPUTER
END ONLY.
6
7
1
2
3
SYMBOLS:
TWISTED PAIR
SHIELDING
