Rice Lake LaserLight Series, Руководство по установке, Страница: 13 / 46

Installation/Setup
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LaserLight Remote Display CPU Board
Port 0 which is connected to the indicator supports three configurations: 20 mA, RS-232, and RS-485 communications.
Port 1 which is the Echo port, supports 20 mA and RS-232 communications.
Figure 2-9. LaserLight Remote Display CPU Board
2.4.3 20 mA Current Loop
20 mA current loop communication is provided on connector J6 of the CPU board ( Figure 2-9 and Table 2-2 on page 8 ).
Ensure receive jumpers are across RX0, 20 mA and select active or passive switch settings. Remove unused jumpers
( Figure 2-10 ).
2.4.4 RS-232
The RS-232 connection is provided on connector J8 of the CPU board ( Figure 2-9 and Table 2-2 on page 8 ).
Ensure transmit and receive jumpers are across TX0 232 and RX0 232 ( Figure 2-10 ).
2.4.5 RS-485
The RS-485 connection is provided on connector J9 of the CPU board ( Figure 2-9 and Table 2-2 on page 8 ).
Ensure transmit and receive jumpers are across TX0 485 and RX0 485 ( Figure 2-10 ).
Figure 2-10. Jumper Pin Locations (Board Revision G and Later)
J9 J8
J6
J5
J7
J4 ISP
Port 0 Jumpers/TX and RX LEDs
Reset Switch
Port 1 Jumpers/TX LEDs
20 mA Active/Passive Selector Switches