Alliance Laundry Systems NK101 - Manual (Page 16)

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Installation
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E. Connecting the Repeater
to a Laptop
NOTE: If connecting the repeater to a laptop, a
terminating resistor must be used. Refer to the
section on “Interfacing a Laptop to Machines” on
page 5. Refer to Figure 9.
F. Tests
Once the network has been wired, run the
following tests to ensure proper installation.
1. Power off all machines before test.
2. Check for continuity of 2 wires running from
the central PC.
a. Disconnect the wires from the PC
b. Check for 120
Ω
± 20%. A much higher
reading indicates an open circuit. This is
caused by a break in the network. A much
lower reading indicates a short in the
network, which means the network is only
communicating to a certain point in the
network.
To Connect Repeater to Laptop
Figure 9
COM1047N
NETWORK
CABLE
(210165)
TERMINAL
STRIP
WALL
ADAPTER
(120 VOLT)
NBS-20
CARD
BLACK
RED
BLACK
GREEN
12 VOLT
DC
REPEATER
NETWORK
CABLE
(210150)
RED
GREEN
BLACK
WHITE
120
Ω
1/2 WATT
TERMINATING
RESISTOR
RS-485
RED