Connecting Optical Fibers; Routing And Connecting Electrical Traffic Cables - Eci Telecom NPT-1020 Installation And Maintenance Manual

NPT-1020 Installation and Maintenance Manual

5.10.3 Connecting Optical Fibers

All optical fibers in the NPT-1020 platform are connected to the LC connectors on the SFP/XFP transceivers.
Optical fibers must be routed through the flexible tube attached to the right side of the cabinet.
Before you start:
C
AUTION: Make sure that all the optical connectors are closed at all times with the
appropriate protective caps or with the mating cable connector. Do not remove the protective
cap until an optical fiber is connected to the corresponding connector, and immediately install
a protective cap after a cable is disconnected.
The minimum bending radius of optical fibers is 35 mm. Sharp bending of fibers may degrade
the optical transmission characteristics.
To connect an optical fiber to a NPT-1020 module/card:
1. Insert the end of the fiber into the upper end of the flexible tube and pull it at the lower end, near the
NPT-1020.
2. Bring the end of the fiber to the LC connector on the designated module/card. Leave some slack to
prevent stress.
3. Thoroughly clean the connectors of the optical fibers, using an approved cleaning kit.
4. Remove the cover from the module/card connector and connect the fiber connector to it.
5. Repeat Steps 1 through 4 for all optical fibers to be connected to NPT-1020 modules/cards.

5.10.4 Routing and Connecting Electrical Traffic Cables

Multipair cables are used to connect to the balanced E1 (2 Mbps) interfaces located on E1 modules
installed in the NPT-1020.
Each cable consists of a total of 21 E1 twisted pairs per cable (transmit or receive). The cable end
connecting to the E1 module is terminated with an appropriate male connector.
To connect multipair cables:
1. Bring the cable connector against the appropriate slot and connect the cable connector to the
corresponding module.
2. Secure the cable connector to the module connector with the two cable connector screws. Tighten
the screws manually; if the screws cannot be reached with your bare hand, use an adjustable-torque
flatblade screwdriver.
3. Bend the cables and thread them through the left side cable guide of the cabinet.
4. Route the cables near the left cable clamp on the C-rail.
ECI Telecom Ltd. Proprietary
NPT-1020 Wall-Mounted Installations
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