Panasonic WV-SF330 Series Installation Manual page 27

Important:
• Do not connect 2 wires or more directly to a terminal. When it is necessary to connect 2 wires
or more, use a splitter.
• Connect an external device with verifying that the ratings are within the specifications below.
• When using the external I/O terminals as the output terminals, ensure they do not cause signal
collision with external signals.
<Ratings>
• ALARM OUT, AUX OUT
Output specification: Open collector output (maximum applied voltage: 20 V DC)
Open: 4 V - 5 V DC by internal pull-up
Close: Output voltage 1 V DC or less (50 mA or less)
• ALARM IN
Input specification: No-voltage make contact input (4 V - 5 V DC, internally pulled up)
OFF: Open or 4 V - 5 V DC
ON: Make contact with GND (required drive current: 1 mA or more)
b
Connect a LAN cable (category 5 or better,
STP*) to the network connector.
* PAL models only
n
Connect the power supply.
Important:
• The 12 V DC power supply shall be insulated
from the commercial AC power.
When using 12 V DC power supply*
q Loosen the screws of the power cord plug
(accessory).
w Connect the cable of the 12 V DC power sup-
ply* to the power cord plug.
Strip 3 mm - 7 mm {1/8 inches - 9/32 inches}
from the end of the wire, and twist the stripped
part of the wire sufficiently to avoid short circuit.
Specification of cable (wire):
16 AWG - 24 AWG, Single core, twisted
• Check whether the stripped part of the wire is
not exposed and is securely connected.
e Tighten the screws of the power cord plug.
r Connect the power cord plug to the 12 V DC
power supply terminal.
* FOR UL LISTED MODEL(S), ONLY CONNECT
12 V DC CLASS 2 POWER SUPPLY.
Network connector
(12 V DC)
(GND)
12 V DC power cord
plug (accessory)
27