EXPRESS DAS
Installation and Operations Manual
62
EXPRESS DAS Installation and Operations Manual – Version 2.2 November 2013
8.2
Install BIU Chassis
Typically, the BIU will be installed in a 19-inch equipment rack. The BIU occupies 5U of rack space.
1- When positioning the BIU in the rack, make sure to leave 1U of space between the BIU and other units
for air circulation. The power shelf typically mounts below the BIU. The ODUs and DMS-600 mount above.
2- Position the BIU in the rack holding the unit by the shift handles. Insert the M6 bolts in the mounting
holes and tighten the screws to secure the chassis.
Figure 8
.
1 – BIU Rack Installation
8.3
Install DC Power Shelf and Connect to BIU
1- Install the DC Power Shelf in the 19-inch rack below the BIU leaving 1U of space.
2- Before connecting the power supply to the terminal block at the back of the BIU, check the voltage
coming from the power supply using a voltage meter. Connect the positive "+" terminal of the volt meter
with the ground “GND” terminal and then connect the negative "–" terminal of the meter with the -48V
terminal. The power source should be providing -48Vdc voltage.
3- After verifying the power source, connect the DC power cable to the BIU terminal block. Connect the
blue cable to the -48v terminal. Connect the black cable to the GND terminal as shown in the following
figure.
Содержание EXPRESS Single-Carrier DAS
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