Figure 2 Isy-994I Series Rear Panel - Universal Devices ISY-99i Series User Manual

The Power port is used to provide power to the ISY with an AC adapter. This may not be
necessary if using a 2412S PLM (now discontinued), but is required when using a 2413S
PLM. Please use an AC adapter that provides 5VDC, a minimum of 300mA, and is center
terminal positive.
Even if using a 2412S PLM, there are several reasons why you may want to use a separate
AC adapter instead of power provided by the PLM:
An AC adapter can be plugged into a UPS to help protect the ISY from power outages
and power surges. The PLM cannot be plugged into a UPS.
Powering the ISY using a separate AC adapter may help improve (by a small amount)
the signal strength of the INSTEON PLM.
Port A is an RJ-45 connector used to attach your INSTEON PLM to the ISY. This allows the
ISY to communicate with your INSTEON devices. Please use a standard Category 5e
network patch cable (included) to connect between your ISY and the PLM. WARNING: DO
NOT use this port to connect to an Ethernet router or switch.
Port B (ISY-99i Series ONLY) is a 9-pin female RS-232 serial port used for initial
configuration for users without a DHCP-enabled network, or for advanced troubleshooting.
Please use a standard 9-pin null-modem serial cable (included with the PRO version) to
connect your ISY to your PC's serial port.
The Monitor port (ISY-994i Series ONLY) is a micro USB port used for initial configuration
for users without a DCHP-enabled network, or for advanced troubleshooting. Please use a
standard micro USB cable to connect your ISY to an available USB port on your PC.
The Network jack is used to attach the ISY to your Ethernet network. Use a standard
Category 5e network patch cable (included) to plug your ISY into an available network jack
on your router or switch. If connecting directly to a PC for programming, please use an
Ethernet cross-over cable (not included). WARNING: DO NOT use this port to connect to
an INSTEON PLM.

Figure 2 ISY-994i Series Rear Panel

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