ELTEX MA4000-PX, Руководство по эксплуатации и обслуживанию

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32 User Manual, Part I
МA4000-РХ Subscriber Access and Aggregation Point
6.2.4 Laying and Connecting Cables
This Section explains an internal connections order to be made in the telecommunication cabinet.
Before connecting power feeders and communication lines to the device, earthing conductors
shall be connected first.
Telecommunication cabinet shall be earthed prior to perform works on feeding power to
the devices.
At the next stage power cables shall be connected. One or two power feeders may be connected
to the device. During connection works, adherence to polarity shall be ensures at all the stages.
All power sources shall be disabled when performing power connection works.
To supply power to the devices installed in the cabinet, a power distribution device shall be used.
The equipment wiring diagram with a distribution device depends on its parameters. An approximate
cable laying diagram is shown in Figure 14.

Red – wire connecting device terminal “+” with positive power supply pole;

Blue – wire connecting device terminal “-“ with negative power supply pole;

Yellow – earthing wire (earthing terminals at the device and earthing bar are marked
with sign
)
Fig. 14—Cable Laying and Connecting and Wire Earthing Diagram
The next stage involves connection of subscriber lines and data transmission lines. The lines shall
be connected in accordance with the design diagram.
Data transmission lines shall be connected to the ports at PP4X control modules. An optical or
copper wire can be used for connection works.