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6 UnityOne Modular Fiber/Copper ZPHA Installation Guide V 2.1
ZPHA Hardware Overview
The ZPHA is a chassis with five available segment ports for module fiber and copper components.
These segment modules include a set of relays for receiving and sending network traffic from a
network system, into the IPS device, and back out to a network system. The network system could be
an Ethernet switch, a single workstation, a server, or other network service. The following table lists the
chassis components.
The ZPHA receives power through the USB connection to the IPS. If the power through the USB cable
interrupts due to power supply failure, power loss, or unplugging, the ZPHA instantly switches to route
network traffic, bypassing the IPS connections. It provides two USB ports for connecting two IPS
devices.
The ZPHA can accept network connections for up to five (5) network segments. Each connection area
is called a segment. You can insert any combination (up to five) of fiber and copper segment
components. Any remaining segment ports can be covered with blank faceplates. At any time, you can
order additional modular segment components to add to your modular ZPHA.
Table 2 - 1: ZPHA Components
Component Description
USB ports (2) USB ports for connecting to the IPS. 2 USB ports (1 type A and 1 type B) are
located on the back panel.
Segments (5) Each modular segment includes network ports and segment ports. The
segment ports connect to the segment ports of the IPS. The network ports
connect to the networked systems sending and receiving traffic via the device.
The modular ZPHA supports fiber and copper segment modules.
LED Status light Indicates if the ZPHA is receiving power from the IPS device. Glows green
when it receives constant power. It remains unlit if it does not receive power.
Note: If you connect two IPS USB cables to the ZPHA device, the ZPHA will
continue to function if one of the devices loses power. The ZPHA bypasses the IPS
only if all power from the IPS devices interrupts. If two IPS devices are connected,
both would have to lose power to cause the ZPHA to bypass.
Tip: The activation of the ZPHA may result in a link transition
in the same way that a link goes down and then up. Even
though switching of the ZPHA is extremely fast, certain
network equipment can take longer to establish link. You
should take note of required link times of the network
equipment connected to the ZPHA.