AP Cumberland Feed-Link 2, Инструкция по установке и эксплуатации

Страница: 26 / 46

7. Networking
26 PNEG-2340 Feed-Link 2
Network Wiring of Display Unit
NOTE: Maximum of 50 display units per Network
Master. Maximum network wire length is
equal to 4000'. Wire Specs: Use
INT-4831-100, INT-4831-500 or
INT-4831-1000 (18 gauge, 2 conductor,
shielded, with a drain wire)
.
1. Hook-up daisy chain “IN” cable.
a. Run 18 AWG shielded network “IN” cable
through top left water tight nut of display
unit.
(See Figure 5E on Page 19.)
b. Remove middle terminal connector
marked “RS485” from the bottom of
the display unit.
c. Loosen lugs on terminal strip that will
correspond with “IN” wire locations for
(SH, B and A) as noted on board.
(See Figure 7D.)
d. Connect the shield wire from the RS485
cable to the terminal marked “SH”.
Connect the black wire from the RS485
cable to the terminal marked “B”. Connect
the white wire from the RS485 cable to the
terminal marked “A”.
(See Figure 7E.)
e. Replace terminal connector onto board,
pull out excess slack and tighten water
tight nuts.
2. Hook-up daisy chain “OUT” cable.
a. Run 18 AWG shielded network “OUT”
cable through right water tight nut of
display unit.
(See Figure 5E on Page 19.)
b. Remove R.H. terminal connector marked
“RS485” from the bottom of display unit.
c. Loosen lugs on terminal strip that will
correspond with the “OUT” wire location
for (SH, B and A) as noted on board.
(See Figure 7D.)
d. Connect the shield wire from the RS485
cable to the terminal marked “SH”.
Connect the black wire from the RS485
cable to the terminal marked “B”. Connect
the white wire from the RS485 cable to the
terminal marked “A”.
(See Figure 7E.)
e. Replace terminal connector onto the
board, pull out excess slack and tighten
the water tight nuts.
Figure 7D Terminal Strip Location
Figure 7E Terminal strip in place with wires connected
Always make sure all power is disconnected and locked out while any electrical
work is being performed.