User's Manual

CrossFire HP – All-Digital Transport System

User Guide

The EU has 8 optical ports and 6 electrical ports. The optical “SLAVE” port should be connected to the AU or upper

EU and the optical “MASTER” port should be connected in a cascading manner to a lower EU in a daisy chain. (Refer to

the networking definition of a daisy chain.) The OP1~OP6 ports have the same functionality and are all used for

connections to RUs. After the EU is connected to the upper device and powered on, the optical indicator LED turns green

which means that the devices are synchronized. If the LED does not turn green, see Section 9 to resolve the issue.

Each EU has six electrical ports, GE1~GE6, which support six LAN signals. Each electrical port corresponds to a

specific optical port, for example, port GE1 corresponds to port OP1 and port GE6 corresponds to port OP6.

6.4.4. RU connections

Prior to attempting the RU connections, read Section 5 thoroughly.

The RU has 2 optical ports, “SLAVE” and “Master. The “SLAVE” port should be connected to an upper AU, EU or RU,

and the “MASTER” port should only be connected to a lower RU. After the RU has been connected to the upper device

and powered on, the optical indicator LED turns green which means that the devices are synchronized. If the LED does

not turn green, see Section 9 to resolve the issue.

6.4.5. Standby battery connection

A plug is connected to a power source on the output wire of the device’s lithium battery. To prevent battery

discharge, this is unplugged before shipping. After the device is operational, plug it in to ensure normal reporting if the

power is cut.

6.5. WLAN Access (Wi-Fi)

Each EU has six electrical ports, GE1~GE6, which support up to 6 LAN signals. LAN signals are input on the GE1~GE6

ports and output from the corresponding OP1~OP6 ports. The signals are then transmitted to the RUs via optical signals

over optical fibre and output from the GE port on the RU. Each RU connects to an AP device through their respective GE

port. Thus, 6 independent Gigabit Ethernet transmission channels can be completed. See Figure 6-16 for WLAN connection

details.

Note: each electrical port (GE1~GE6) must correspond to an optical port (OP1~OP6), i.e. GE1 should correspond to

OP1, GE2 should correspond to OP2, etc. WLAN signal input on GE1 is then sent out on OP1.

If there are multiple access points (AP) that are connected to more than one cascading RU in a signal chain, the WLAN

signal will only be output from one of the RUs, with the priority being RU1>RU2>RU3 when selecting which RU the signal

will be output from. If there is only one AP device, then the WLAN signal is always output from the RU that is connected to