NK Series User Guide (1.0) Installation • 3–27
Figure 3.47 GPI Output Connection
Customizing RCP-NK1 Control Panels
Overview
One of the flexible features of the NK Series of routers and panels is the ability to install RCP-NK1 control panels
either locally or remotely to NK-16 routers. Localizing panels ensures that rack space is maximized and cable
connections are minimized. Remotely installing panels means that panels do not necessarily have to be installed in
the immediate vicinity of the routers, and can be connected and installed in other rooms if required.
Localizing the Panel
If users are localizing control panels, a short (between 12.5 and 20cm or 5 and 8”) standard (not crossover) CAT5
cable is required to connect the panel to the router internally.
Ensure that the router and the panel you wish to localise are not connected to any other devices before proceeding.
Also ensure that both the router and the control panel are disconnected from the power source.
To fit the control panel locally to the front of the router:
1. Remove the front button panel from the case it was originally shipped in.
2. Remove the front panel of the router.
3. Disconnect the wire that connects the heartbeat to the circuit board.
When connecting GPI outputs to the NK-GPI, users must remember there is a 10 mA current limit on
each output, and a resistor must be connected to the GPI output to maintain peak operation. Figure 3.47
depicts how to wire outputs correctly.
To Output pin
10mA current limit
on outputs
+5v
Pin 1 or Pin 28
470R
LED
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