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| Title | Size | Download |
|---|---|---|
| 01-Text | 1.30 MB |
1 Hardware information and specifications
H3C 5G extended pico station overview
Assembling a hybrid copper-fiber cable
Making an Ethernet twisted pair cable
1 Hardware information and specifications
H3C 5G extended pico station overview
H3C 5G extended pico station is an indoor distributed wireless access system that features simple architecture, easy deployment and maintenance, and multi-standard deep coverage. As shown in Figure1-1, an H3C extended pico station contains the following components:
· BBU—Baseband processing unit that provides device management, configuration management, performance monitoring, clock management, signaling processing, baseband resource management, and wireless resource management.
· FSW—Expansion unit that connects to the BBU or a lower-level FSW via an optical fiber. It connects to pRRUs via hybrid copper-fiber cables and supply power for the pRRUs.
· pRRU—Remote radio unit that provides the following features:
¡ The Tx channels receive digital signals from enhanced Common Public Radio Interface (eCPRI) ports on the BBU. Then, they perform digital-to-analog conversion, frequency modulation, and amplification and filtering on the digital signals, and transmit the RF signals through an antenna.
¡ The Rx channels capture the RF signals from the antenna. Then, they perform amplification and filtering, frequency modulation, and analog-to-digital conversion on the RF signals, and send the digital signals to the BBU through the eCPRI port.
A pRRU can be connected to the BBU directly or through an FSW to expand the cell scale.
Figure1-1 H3C 5G extended pico station
Hardware specifications
Chassis views
The device can be categorized by appearance into the following model types:
· Model with built-in antennas.
· Model with external antennas (not supported).
As shown in Figure1-2 and Figure1-3, compared with the model with built-in antennas, the model with external antennas also provides external antenna ports. (This document uses a pRRU5214 with two external antenna ports as an example.)
Figure1-2 Chassis views (without external antenna ports)
Figure1-3 Chassis views (with external antenna ports, not supported)
As shown in Figure1-4, the device supports various external ports. The supported ports vary by device model. This document uses the model with external antennas as example to describe all ports and LEDs. For ports supported by different device models, see "Technical specifications."
|
(1) External antenna ports (not supported) |
(2) LED |
|
(3) Management port |
(4) PoE++ port |
|
(5) SFP+ port |
(6) PoE+/GE port |
|
|
NOTE: The device uses the PoE++ port to receive power and the PoE+/GE port to supply power for the connected device. |
Technical specifications
Technical specifications overview
The pRRUs can be distinguished by different models through their suffixes.
· E—The pRRU provides a downlink port.
· M—The pRRU supports three-antenna deployment.
· O—The pRRU supports both the downlink port and external antennas.
· P—The pRRU has high power.
H3C pRRU5214 is a remote radio unit compliant with the NR standard, which works in conjunction with the BBU and FSW to form a complete 5G small station solution. As shown in Table1-1, the device has multiple models. Different models have different specifications to accommodate various application scenarios.
Table1-1 Brief description for hardware specification differences between pRRU5214 models
|
Product model |
Standard |
Frequency band |
Downlink port |
Three-antenna deployment |
External antenna |
High power |
|
pRRU5214-A1(E) |
NR (TDD) |
N79 |
Supported |
Not supported |
Not supported |
Not supported |
|
pRRU5214-B(E) |
NR (TDD) |
N78 |
Supported |
Not supported |
Not supported |
Not supported |
pRRU5214-A1(E) technical specifications
Table1-2 pRRU5214-A1(E) technical specifications
|
Specification |
||
|
Dimensions (H × W × D) |
58 × 200 × 200 mm (2.28 × 7.87 × 7.87 in) |
|
|
Weight |
≤ 2 kg (4.41 lb) |
|
|
System power consumption |
≤ 34 W |
|
|
Standard |
NR (TDD) |
|
|
Working frequency band |
NR: N79 |
|
|
Frequency range |
NR: 4800 MHz to 4900 MHz |
|
|
Ports |
1 × SFP+ fiber port 1 × PoE input network port (PoE++ port) 1 × management port 1 × downlink port (PoE+/GE port) |
|
|
Antenna technology |
NR: 4T4R |
|
|
Transmit power |
NR: 4 × 250 mW |
|
|
Built-in antenna |
Gain |
NR: 1.5 dBi |
|
Polarization |
Linear polarization |
|
|
Direction |
Omnidirectional |
|
|
Receive sensitivity per antenna |
NR: –93 dBm |
|
|
IBW |
NR: 100 MHz |
|
|
OBW |
NR: 100 MHz |
|
|
Synchronization |
Clock synchronized with the BBU or FSW |
|
|
Installation method |
Ceiling mounting, wall mounting, T-rail mounting, pole mounting, and mounting to suspended rods |
|
|
Power source |
–48 VDC PoE |
|
|
Cooling |
Passive cooling |
|
|
Extended distance |
A maximum of 200 m (656.17 ft) after being connected to an FSW through a hybrid copper-fiber cable |
|
|
Standard operating temperature (indoor) |
–5°C to +40°C (23°F to 104°F, open environment) –5°C to +55°C (23°F to 131°F, 1 m/s wind speed environment) |
|
|
Storage temperature |
–40°C to +70°C (–40°F to +158°F) |
|
|
Operating humidity |
5% RH to 95% RH, noncondensing |
|
|
Storage humidity |
5% RH to 95% RH, noncondensing |
|
|
IP rating |
IP31 |
|
pRRU5214-B(E) technical specifications
Table1-3 pRRU5214-B(E) technical specifications
|
Item |
Specification |
|
|
Dimensions (H × W × D) |
58 × 200 × 200 mm (2.28 × 7.87 × 7.87 in) |
|
|
Weight |
≤ 2 kg (4.41 lb) |
|
|
System power consumption |
≤ 34 W |
|
|
Standard |
NR (TDD) |
|
|
Working frequency band |
NR: N78 |
|
|
Frequency range |
NR: 3300 MHz to 3600 MHz |
|
|
Ports |
1 × SFP+ fiber port 1 × PoE input network port (PoE++ port) 1 × management port 1 × downlink port (PoE+/GE port) |
|
|
Antenna technology |
NR: 4T4R |
|
|
Transmit power |
NR: 4 × 250 mW |
|
|
Built-in antenna |
Gain |
NR: 3 dBi |
|
Polarization |
Linear polarization |
|
|
Direction |
Omnidirectional |
|
|
Receive sensitivity per antenna |
NR: –94 dBm |
|
|
IBW |
NR: 300 MHz |
|
|
OBW |
NR: 100 MHz |
|
|
Synchronization |
Clock synchronized with the BBU or FSW |
|
|
Installation method |
Ceiling mounting, wall mounting, T-rail mounting, pole mounting, and mounting to suspended rods |
|
|
Power source |
–48 VDC PoE |
|
|
Cooling |
Passive cooling |
|
|
Extended distance |
A maximum of 200 m (656.17 ft) after being connected to an FSW through a hybrid copper-fiber cable |
|
|
Standard operating temperature (indoor) |
–5°C to +40°C (23°F to 104°F, open environment) –5°C to +55°C (23°F to 131°F, 1 m/s wind speed environment) |
|
|
Storage temperature |
–40°C to +70°C (–40°F to +158°F) |
|
|
Operating humidity |
5% RH to 95% RH, noncondensing |
|
|
Storage humidity |
5% RH to 95% RH, noncondensing |
|
|
IP rating |
IP31 |
|
Ports
SFP+ port
Table1-4 SFP+ port specifications
|
Item |
Specification |
|
Connector type |
SFP female connector |
|
Transmission baud rate |
9.8 Gbps |
|
Compliant standard |
SFP+, eCPRI |
|
Supported services |
Connects to an FSW and transmits eCPRI data |
PoE++ port
Table1-5 PoE++ port specifications
|
Item |
Specification |
|
Connector type |
RJ-45 |
|
Compliant standard |
IEEE 802.3bt |
|
Supported services |
Connects to an FSW for power reception |
PoE+/GE port
Table1-6 PoE+/GE port specifications
|
Max transmission distance |
100 m (328.08 ft) |
|
Transmission medium |
Category 5e or above twisted pair cable |
|
Supported services |
Connects to an AP, short-distance IoT device, UWB device, or Bluetooth device. The following services are supported: · Data forwarding with 1 Gbps or 100 Mbps bandwidth. · PoE 802.3at power supply. · Device cascading. The port transmits data and supplies power for the cascaded device. |
Management port
Table1-7 Management port specifications
|
Item |
Specification |
|
Connector type |
RJ-45 |
|
Transmission baud rate |
Serial port: 9600 bps |
|
Compliant standard |
RS232 |
|
Supported services |
Used as a management serial port for device maintenance and debugging (for internal testing only) |
Available transceiver modules
Transceiver module, fiber connector, and optical fiber views
To connect the pRRU to an FSW, use an SFP+ transceiver module and an optical fiber with an LC connector.
Figure1-5 SFP+ transceiver module
Figure1-6 Optical fiber with LC connectors
|
(1) LC connector |
(2) Optical fiber |
Transceiver module specifications
Table1-8 Transceiver module specifications (1)
|
Product code |
Center wavelength (nm) |
Fiber mode |
Fiber diameter (µm) |
Modal bandwidth (MHz*km) |
Transmission distance |
Transmission rate |
|
SFP-XG-CPRI-IR-SM1310 |
1310 |
SMF |
9/125 |
N/A |
1.4 km (0.87 miles) |
4.92 to 10.31 Gbps |
Table1-9 Transceiver module specifications (2)
|
Model |
Port specifications (dBm) |
|
|
Tx optical power |
Rx optical power |
|
|
SFP-XG-CPRI-IR-SM1310 |
–8.2 to +0.5 |
–14.4 to +0.5 |
LEDs
|
LED |
Color |
Status |
Description |
|
|
N/A |
Off |
The device is not powered on. |
|
Yellow |
Steady on |
· The system software is starting. · An initialization exception has occurred. |
|
|
Flashing twice per second |
· The fiber port is down. · The device is faulty. |
||
|
Green |
Steady on |
No cells are activated. |
|
|
Flashing once every 2 seconds |
All or some of the cells have been activated. |
||
|
Flashing four times per second |
The device is updating software. |
||
|
Blue |
Flashing twice per second |
· The fiber link has failed. · Abnormal transmit or receive power on the transceiver module. |
|
|
Flashing once every 2 seconds |
No antenna is present. |
Hybrid copper-fiber cable
Introduction
A hybrid copper-fiber cable adds insulated conductors to the optical fiber structure and combines optical fibers and power transmission copper wires (power cord) within the same jacket. It provides a longer transmission distance, suitable for a variety of service types.
Figure1-7 Cross-section view of a hybrid copper-fiber cable
Assembling a hybrid copper-fiber cable
Cables and connectors
To use a hybrid copper-fiber cable, you must first assemble it. Table1-11 describes the cables, LC connectors, and RJ-45 power connectors required for assembling a hybrid copper-fiber cable.
Table1-11 Cables and connectors for assembling a hybrid copper-fiber cable
|
Type |
Description |
Fiber/connector type |
BOM part No./product code |
|
RJ-45 power connector |
Network Interface Connector,Single Row,1-Port,2-PIN,Noshielded,Plug,4mm,UPOE,Without Transformer |
RJ-45 |
1408A047 |
|
Cable |
Symmetrical Twisted Pair cable,Photoelectric Hybrid Cable,4 Cores,100m |
Single mode, G.657A2 |
HYBRID CABLE-100 |
|
Cable |
Symmetrical Twisted Pair cable,Photoelectric Hybrid Cable,4 Cores,200m |
Single mode, G.657A2 |
HYBRID CABLE-200 |
|
Cable |
Symmetrical Twisted Pair cable,Photoelectric Hybrid Cable,4 Cores,500m |
Single mode, G.657A2 |
HYBRID CABLE-500 |
|
LC connector |
Fiber Connector-LC/PC-LC/PC-2mm-3m, Single Mode |
LC |
OP-LC/PC-LC/PC-3-S |
RJ-45 power connector
Figure1-8 shows the view of the RJ-45 power connector with product code 1408A047.
Figure1-8 RJ-45 power connector view (1408A047)
|
(1) Positive connection |
(2) Negative connection |
Procedure
|
|
CAUTION: · A hybrid copper-fiber cable can be assembled only by experienced optical communication construction personnel, and the personnel must be equipped with professional optical fiber assembling and testing tools. · To use an SFP-XG-CPRI-IR-SM1310 transceiver module, make sure the optical link attenuation between the FSW and device is less than 6.2 dB. · Take dust-proof and pressure-resistant measures for the assembled hybrid copper-fiber cable. · When you assemble an LC connector through fusion splicing, use a fiber splice enclosure to protect the splice tube and prevent damage to the fiber splice point caused by pulling or bending. |
To assemble a hybrid copper-fiber cable:
1. Peer off 50 cm (19.69 in) of the outer sheath from each end of the hybrid copper-fiber cable. To easily remove the outer sheath and prevent the cable from being broken, divide the 50 cm (19.69 in) length into two or three sections for removal.
|
|
CAUTION: · When you peel off the outer sheath, be careful not to damage the copper wire or optical fiber core. · Do not severely bend the cable at the stripped sections. · For on-site cable concealment, appropriately increase the peeled length of the outer sheath. |
Figure1-9 Peeling off the outer sheath from both ends of the cable
2. Attach LC connectors to the optical fibers.
a. Use a butterfly fiber stripper to strip off 5 cm (1.97 in) of fiber jacket from each end of the optical fibers.
Figure1-10 Stripping off the fiber jacket
b. Insert the stripped ends of the optical fibers into the LC connector by mechanical or fusion splicing. The fiber length shown in Figure1-11 can be used as a reference length for mechanical splicing. If fusion splicing is used, adjust the fiber length based on the length of the pigtail to be spliced and the site conditions.
Figure1-11 Connecting fibers to LC connectors
c. Test the optical fibers and make sure the fibers can operate correctly.
3. Attach RJ-45 power connectors (product code: 1408A047) to the power wires.
a. As shown in Figure1-12, cut the power wires at the position parallel to the collar position of the LC connectors, with a cut-off length less than 8 mm (0.32 in).
Figure1-12 Cutting off power wires
b. As shown in Figure1-13, insert the stripped ends of copper wires into RJ-45 power connectors.
- Peer off 5 mm (0.20 in) of insulation sheath from each end of the power wires.
- Insert the stripped ends of power wires into the cable inlets on the RJ-45 power connector. Make sure no excess wires are exposed.
- Identify the positive (A) and negative (B) marks on the connector, and make sure the two ends of a power wire are connected to the cable inlets of the same polarity.
- Fasten the screws to secure the power wires.
Figure1-13 Connecting RJ-45 power connectors
c. Verify that the RJ-45 power connectors are connected securely.
Figure1-14 Testing connection of the RJ-45 power connectors
Ethernet twisted pair cable
Introduction
An Ethernet twisted pair cable consists of four pairs of insulated copper wires twisted together. Every wire uses a different color, and has a diameter of about 1 mm (0.04 in). A pair of twisted copper cables can cancel the electromagnetic radiation of each other, and reduce interference of external sources. An Ethernet twisted pair cable mainly transmits analog signals and is advantageous in transmitting data over shorter distances. It is the commonly used transmission media of the Ethernet. The maximum transmission distance of the Ethernet twisted pair cable is 100 m (328.08 ft). To extend the transmission distance, you can connect two twisted pair cable segments with a repeater. At most four repeaters can be added, which means five segments can be joined together to provide a transmission distance of 500 m (1640.42 ft).
Ethernet twisted pair cables can be classified into category 3, category 4, category 5, category 5e, category 6, and category 7 cables based on performance. In LANs, category 5, category 5e, and category 6 are commonly used.
Table1-12 Description for commonly used Ethernet twisted pair cables
|
Type |
Description |
|
Category 5 |
Suitable for data transmission at a maximum speed of 100 Mbps |
|
Category 5e |
Suitable for data transmission at a maximum speed of 1000 Mbps |
|
Category 6 |
Suitable for data transmission at a speed higher than 1 Gbps |
Based on whether a metal shielding is used, Ethernet twisted pair cables can be classified into shielded twisted pair (STP) and unshielded twisted pair (UTP). An STP cable provides a metallic braid between the twisted pairs and the outer jacket. This metallic braid helps reduce radiation, prevent information from being listened, and eliminate external electromagnetic interference (EMI) of external sources. STPs have strict application requirements and are expensive although they provide better EMI prevention performance than UTPs, so in most LANs, UTPs are commonly used.
An Ethernet twisted pair cable connects network devices through the RJ-45 connectors at the two ends. Figure1-15 shows the pinouts of an RJ-45 connector.
Figure1-15 RJ-45 connector pinout
|
|
NOTE: Use a category 5e or above Ethernet twisted pair cable for the device to supply power for a pRRU. |
EIA/TIA cabling specifications define two standards, 568A and 568B, for cable pinouts.
· Standard 568A—pin 1: white/green stripe, pin 2: green solid, pin 3: white/orange stripe, pin 4: blue solid, pin 5: white/blue stripe, pin 6: orange solid, pin 7: white/brown stripe, pin 8: brown solid.
· Standard 568B—pin 1: white/orange stripe, pin 2: orange solid, pin 3: white/green stripe, pin 4: blue solid, pin 5: white/blue stripe, pin 6: green solid, pin 7: white/brown stripe, pin 8: brown solid.
Ethernet twisted pair cables can be classified into straight-through and crossover cables based on their pinouts.
· Straight-through—The pinouts at both ends are T568B compliant, as shown in Figure1-16.
· Crossover—The pinouts are T568B compliant at one end and T568A compliant at the other end, as shown in Figure1-17.
Figure1-16 Straight-through cable
Select an Ethernet twisted pair cable according to the RJ-45 Ethernet port type on your device. An RJ-45 Ethernet port can be MDI (for routers and PCs) or MDIX (for switches). Table1-13 and Table1-14 show their pinouts.
Table1-13 RJ-45 MDI port pinouts
|
Pin |
10Base-T/100Base-TX |
1000Base-T |
||
|
Signal |
Function |
Signal |
Function |
|
|
1 |
Tx+ |
Sends data |
BIDA+ |
Bi-directional data cable A+ |
|
2 |
Tx- |
Sends data |
BIDA- |
Bi-directional data cable A- |
|
3 |
Rx+ |
Receives data |
BIDB+ |
Bi-directional data cable B+ |
|
4 |
Reserved |
N/A |
BIDC+ |
Bi-directional data cable C+ |
|
5 |
Reserved |
N/A |
BIDC- |
Bi-directional data cable C- |
|
6 |
Rx- |
Receives data |
BIDB- |
Bi-directional data cable B- |
|
7 |
Reserved |
N/A |
BIDD+ |
Bi-directional data cable D+ |
|
8 |
Reserved |
N/A |
BIDD- |
Bi-directional data cable D- |
Table1-14 RJ-45 MDIX port pinouts
|
Pin |
10Base-T/100Base-TX |
1000Base-T |
||
|
Signal |
Function |
Signal |
Function |
|
|
1 |
Rx+ |
Receives data |
BIDB+ |
Bi-directional data cable B+ |
|
2 |
Rx- |
Receives data |
BIDB- |
Bi-directional data cable B- |
|
3 |
Tx+ |
Sends data |
BIDA+ |
Bi-directional data cable A+ |
|
4 |
Reserved |
N/A |
BIDD+ |
Bi-directional data cable D+ |
|
5 |
Reserved |
N/A |
BIDD- |
Bi-directional data cable D- |
|
6 |
Tx- |
Sends data |
BIDA- |
Bi-directional data cable A- |
|
7 |
Reserved |
N/A |
BIDC+ |
Bi-directional data cable C+ |
|
8 |
Reserved |
N/A |
BIDC- |
Bi-directional data cable C- |
To ensure normal communication, the pins for sending data on one port must correspond to the pins for receiving data on the peer port. When both ports on the two devices are MDI or MDIX, use a crossover Ethernet cable; when one port is MDI and the other is MDIX, use a straight-through Ethernet cable. To summarize, straight-through and crossover cables connect the following devices:
· Straight-through cables connect devices of different types—for example, router to PC and router to switch.
· Crossover cables connect devices of the same type—for example, switch to switch, router to router, and PC to PC.
If an RJ-45 Ethernet port is enabled with MDI/MDIX autosensing, it can automatically negotiate pin roles.
|
|
NOTE: The RJ-45 Ethernet ports on the device support MDI/MDIX autosensing. |
Making an Ethernet twisted pair cable
1. Cut the cable to a required length with the crimping tool.
2. Strip off an appropriate length of the cable sheath. The length is typically that of the RJ-45 connector.
3. Untwist the pairs so that they can lay flat, and arrange the colored wires based on the wiring specifications.
4. Cut the top of the wires even with one another and insert the wires into the RJ-45 connector. Make sure the wires extend to the front of the RJ-45 connector and make good contact with the metal contacts in the RJ-45 connector and in the correct order.
5. Crimp the RJ-45 connector with the crimping tool until you hear a click.
6. Use a cable tester to verify the connectivity of the cable.
PoE injector
PoE injector overview
The EWPAM1UPOE2 is a dual-port PoE injector that can be used both indoor and outdoor (additional waterproofing measures are required when it is used outdoor). It features wide operating temperature range and strong protection capability. The EWPAM1UPOE2 PoE injector can connect to a network endpoint over a category 5e cable and is applicable to a 10/100/1000M network.
Figure1-18 EWPAM1UPOE2 view
|
(1) Wall-mounting installation hole |
(2) Power input cord |
Figure1-19 Panel view
|
(1) PoE1 port |
(2) PoE2 port |
(3) PoE1 LED |
|
(4) PoE2 LED |
(5) Power status LED (POWER) |
(6) LAN2 port |
|
(7) LAN1 port |
||
Table1-15 Technical specifications
|
Item |
Specification |
|
Dimensions (H × W × D) |
46 × 213 × 85 mm (1.81 × 8.39 × 3.35 in) |
|
Weight |
0.5 kg (1.10 lb) |
|
Rated input voltage |
100 to 240 VAC @ 50 or 60 Hz |
|
Max input current |
1.5 A (115 VAC, full load) 0.75 A (230 VAC, full load) |
|
Rated output voltage |
55 VDC |
|
Rated output current |
1.1 A |
|
Total output power |
≤ 60 W |
|
Temperature |
Operating temperature: –30°C to +55°C (–22°F to +131°F) Storage temperature: –30°C to +70°C (–22°F to +158°F) |
|
Humidity |
Operating humidity: 5% RH to 95% RH, noncondensing Storage humidity: 10% RH to 90% RH, noncondensing |
|
Security compliance |
CCC |
LEDs
Table1-16 LED description
|
LED |
Mark |
Status |
Description |
|
PoE1 LED |
PoE1 |
Off |
The PoE1 port outputs no load. |
|
Steady green |
The PoE1 port is supplying power correctly. |
||
|
PoE2 LED |
PoE2 |
Off |
The PoE2 port outputs no load. |
|
Steady green |
The PoE2 port is supplying power correctly. |
||
|
Power status LED |
POWER |
Off |
The PoE injector is not powered on. |
|
Steady green |
The PoE injector is operating correctly. |
Acronyms
|
Abbreviation |
Full name |
|
BBU |
Baseband Unit |
|
eCPRI |
enhanced Common Public Radio Interface |
|
FSW |
Front Haul Switch |
|
IBW |
Instantaneous BandWidth |
|
LTE |
Long Term Evolution |
|
MMF |
Multi-Mode Fiber |
|
NR |
New Radio Access |
|
OBW |
Operation Bandwidth |
|
pRRU |
Pico RRU |
|
RRU |
Remote Radio Unit |
|
SFP |
Small Form-factor Pluggable |
|
SMF |
Single Mode Fiber |
