User Manual

15162 Ver 2.8 DRAFT E Central Network Controller Installation Guide
Page 46 © 2002 Blick USA, Inc.
10.6 LD-120MP Line Drivers
10.6.1 CNC to LD-120MP
Use 4-core 24AWG/0.22mm² screened signal cable, maximum length: 50ft/15m.
CNC RS-232 Port LD-120MP
9 pin male D-type connector 25 pin male D-type connector
RX 3
——<—
3TX
TX 2
——>—
2RX
GND 5
————
7GND
CTS 8
see Note DTR 4
Note
The CTS signal should always be kept high at the CNC when a site is connected. This should be
done by connecting the CTS signal (pin 8) to DTR (pin 4).
10.6.2 LD-120MP to Door Controller
Use 4-core 24AWG/0.22mm² screened signal cable, maximum length: 50ft/15m.
LD-120MP Door Controller
25 pin male D-type connector 5-way terminal block
RX 2
—<——
TX
TX 3
—>——
RX
GND 7
————
GND
10.6.3 Between LD-120MPs
Use twin twisted pair, maximum length: speed dependent, see Section 8.3.2.
LD-120MP LD-120MP
screw terminals screw terminals
1
————
4
2
————
3
3
————
2
4
————
1