Huawei RTN 320 RTN320 Cable

Huawei Microwave RTN 320 RTN320 Cable

Cables

This chapter describes the purpose, physical appearance, and connections of various cables used with OptiX RTN 320s.

Outdoor Network Cables

Fitted with RJ45 connectors at both ends, outdoor network cables connect to Ethernet ports.

The GE electrical ports of PIs support the medium dependent interface (MDI), MDI crossover (MDI-X), and auto-MDI/MDI-X modes. Straight-through cables and crossover cables can be used to connect the NMS ports and GE electrical ports to MDIs or MDI-Xs. Straight-through cables are recommended if network cables are made onsite.

Cable Diagram

Figure 1 Network cable 

Pin Assignments

Connector X1 Connector X2 Color Relationship
X1.1 X2.1 White/Orange Twisted pair
X1.2 X2.2 Orange
X1.3 X2.3 White/Green Twisted pair
X1.6 X2.6 Green
X1.4 X2.4 Blue Twisted pair
X1.5 X2.5 White/Blue
X1.7 X2.7 White/Brown Twisted pair
X1.8 X2.8 Brown
Braided shield

Connector X1 Connector X2 Color Relationship
X1.1 X2.3 White/Green Twisted pair
X1.2 X2.6 Green
X1.3 X2.1 White/Orange Twisted pair
X1.6 X2.2 Orange
X1.4 X2.4 Blue Twisted pair
X1.5 X2.5 White/Blue
X1.7 X2.7 White/Brown Twisted pair
X1.8 X2.8 Brown
Braided shield

 NOTE:

  • Straight-through cables are used between MDIs and MDI-Xs, and crossover cables are used between MDIs or between MDI-Xs. The only difference between straight-through cables and crossover cables is with regard to their pin assignments.
  • Either straight-through cables or crossover cables can be used to connect RTN 320 to common Ethernet equipment since Ethernet electrical ports support the MDI, MDI-X, and auto-MDI/MDI-X modes. If RTN 320 connects to power sourcing equipment through a P&E port, pin assignments for power signals output from the power sourcing equipment determines whether to use straight-through cables or crossover cables.
  • When P&E is used, the network cable transmits both power supply and Ethernet signals. The Ethernet cable's inter-wire impedance difference must be within 50%; otherwise, Ethernet packets may be lost.

Outdoor Optical Fiber

Outdoor optical fibers are used for transmitting optical signals, and they fit outdoor scenarios.

Fiber Diagram

Figure 1 Optical fiber (Single-mode) 

Figure 2 Optical fiber (Multi-mode) 

 NOTE:

  • Fiber connectors must be fit into outdoor protective tubes.
  • Optical fibers already have correct receive/transmit connections at both ends.

Technical Specifications

Connector Type Fiber Parameter
DLC/UPC Single-mode, GYFJH 2B1.3 (low smoke and zero halogen), 7.0 mm, 2-core, 0.03 m/0.34 m, 2 mm, outdoor protected branch cable
DLC/PC Multi-mode, GYFJH 2A1a (low smoke zero halogen), 7.0 mm, 2-core, 0.03 m/0.34 m, 2 mm, outdoor protected branch cable

Optical fibers for GE optical ports are available in 10 lengths, ranging from 10 meters to 150 meters. Generally, a 2-meter fiber is used to connect the cascading ports in a cascading 1+1 protection group or an EPLA group. You can use optical fibers of appropriate lengths if the lengths cannot meet onsite requirements.

Power Cables

A power cable connects a power supply device and the RTN 320 and supplies -48 V power to the RTN 320.

Cable Diagram

A power cable is terminated with a tool-less connector with a puller at one end and is not terminated at the other end. A terminal needs to be made for the other end onsite based on the port requirements of the power distribution device. See the following figure.Figure 1 Power cable diagram 

Cable Core Description

A DC input power cable is a two-core cable. The following table describes the mapping between the names and colors of core wires.

Core Wire Name Core Wire Color
NEG (-) Blue
RTN (+) Black (North American standard)Brown (European standard)

 NOTE:Power cables with a 2.5 mm2 cross-sectional area can extend for a maximum distance of 140 m. Power cables with a 3.3 mm2 cross-sectional area can extend for a maximum distance of 213 m. Power cables with a 4 mm2 cross-sectional area can extend for a maximum distance of 256 m.

RTN 320 PGND Cables

PGND cables are connected to ground screws and outdoor ground points (such as ground points on towers) so that RTN 320 is connected to the outdoor ground grid.

Cable Diagram

Figure 1 RTN 320 PGND cable 

1. Bare crimp terminal, OT 2. Base of the ground clip

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