User's Manual

EMS Wireless Operator’s Manual

EkoLink II

(a) RF power meter

(b) Optical power meter

(d) Signal generator

2.4 Power Supply Installation

If purchased, install the power supply and connect power to the Hub. The 120

VAC power supply has an on-off switch which is located on the rear of the chassis.

This should remain in the off position until the installation is completed.

2.5 Single Hub Installation

To Install the Hub, locate it as close as possible to the Service Provider’s BTS.

Any distance between the BTS and Hub will result in unnecessary cable losses. It

is also very important to ensure that the composite RF Downlink power does not

exceed +20 dBm. Table 1 shows the maximum allowable power setting for each

carrier to arrive at a composite power of +20 dBm.

Number of Carriers Power Per Carrier

1 +20 dBm

2 +17 dBm

3 +15.2 dBm

4 +14 dBm

n +20 - [10log(n)] dBm/ch

Table 1. Power per carrier table

Note that each additional provider requires a reduction in carrier power to maintain

the maximum rated input power of +20 dBm.

• Using a Philips screwdriver and the provided screws, secure the Hub in a

standard 19” equipment rack near the BTS.

• Connect the Downlink RF Output from the BTS to the RF Input on the Hub.

• Connect the RF Output from the Hub to the BTS Uplink port.

• Connect the power to the Hub.

• If the modem option was purchased and a dedicated phone line is available,

connect the RJ-45 phone jack.

• Log onto the Hub as user and follow the system initialization procedures.