Contents

Hardware information and specifications· 1

H3C 5G extended pico station overview· 1

Hardware specifications· 2

Chassis views· 2

Technical specifications· 3

Ports· 5

SFP+ port 5

PoE++ port 5

PoE+/GE port 6

Management port 6

NOTE: 6

Available transceiver modules· 6

LEDs· 7

Hybrid copper-fiber cable· 8

Introduction· 8

Assembling a hybrid copper-fiber cable· 8

Procedure· 9

Ethernet twisted pair cable· 11

Introduction· 11

Making an Ethernet twisted pair cable· 15

PoE injector 15

PoE injector overview· 15

LEDs· 16

Acronyms· 17

 

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 Figure 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 supplies 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.

Figure 1 H3C 5G extended pico station

 

 

Hardware specifications

Chassis views

H3C pRRU5202 is a built-in antenna model, as shown in Figure 2.

Figure 2 Chassis views (without external antenna ports)

As shown in Figure 3, pRRU5202 supports multiple external interfaces, and the interfaces supported may vary for different sub-models. Please refer to the specific interfaces supported by the sub-model in the Technical specifications

 

Figure 3 Ports

 

 

(1) Security slot	(2) Management port
(3) PoE+/GE port	(4) PoE++ port
(5) SFP+ port

 

 

NOTE: ·     ③ corresponds to the port (PoE+/GE interface) used to power the connected device, and ④corresponds to the port (PoE++ interface) for the device's power supply network. ·     In addition to the above interfaces, pRRU5202 also includes an anti-theft lock hole.

 

Technical specifications

Technical specifications overview

H3C pRRU5202 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 Table 1, the device has multiple models. Different models have different specifications to accommodate various application scenarios.

Table 1 Brief description for hardware specification differences between pRRU5202 models

Product model	Standard	Frequency band	Downlink port	Three-antenna deployment	External antenna	High power
pRRU5202	NR (TDD)	N41	Not supported	Not supported	Not supported	Not supported
pRRU5202-B	NR (TDD)	N78	Not supported	Not supported	Not supported	Not supported

 

pRRU5202 technical specifications

Table 2 pRRU5202 technical specifications

Item		Specification
Dimensions (W× D × H)		200 × 200 × 45mm (7.87 × 7.87 × 1.77 in)
Weight		≤ 1.6 kg (3.53 lb)
System power consumption		≤ 24 W
Standard		NR (TDD)
Working frequency band		N41
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		2T2R
Transmit power		2×250mw
Built-in antenna	Number of antennas	2
	Gain	4 dBi
	Polarization	Linear polarization
	Direction	Omnidirectional
Receive sensitivity per antenna		-94dBm
IBW		100 MHz
OBW		300MHZ
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		54 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

 

pRRU5202-B technical specifications

Table 3 pRRU5202-B technical specifications

Item		Specification
Dimensions (W × D × H)		200 × 200 × 45mm (7.87 × 7.87 × 1.77 in)
Weight		≤ 1.6 kg (3.53 lb)
System power consumption		≤ 24 W
Standard		NR (TDD)
Working frequency band		NR: N78
Frequency range		3300 MHz to 3600 MHz
Ports		1 × SFP+ fiber port 1 × PoE input network port (PoE++ port) 1 × management port
Antenna technology		2T2R
Transmit power		2 × 250 mW
Built-in antenna	Number of antennas	2
	Gain	4 dBi
	Polarization	Linear polarization
	Direction	Omnidirectional
Receive sensitivity per antenna		–94 dBm
IBW		100 MHz
OBW		160 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		54 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

Table 4 SFP+ port specifications

Item	Specification
Connector type	SFP female connector
Transmission baud rate	9.8 Gbps
Compliant standard	eCPRI
Supported services	Connects to an FSW and transmits eCPRI data

 

PoE++ port

Table 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

Table 6 PoE+/GE port specifications

Item	Specification
Connector type	RJ-45
Transmission baud rate	1 Gbps/100 Mbps
Max transmission distance	100 m (328.08 ft)
Transmission medium	Category 5e or above twisted pair cable
Compliant standard	IEEE802.3at
Supported services	Not currently support using

 

Management port

Table 7 Management port specifications

Item	Specification
Connector type	RJ-45
Transmission baud rate	Serial port: 115200 bps
Compliant standard	Ethernet II/RS232
Supported services	Management port, used for device debugging, not currently supported for use NOTE: For maintenance personnel debugging use 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.

Figure 4 SFP+ transceiver module

 

Figure 5 Optical fiber with LC connectors

(1) LC connector

(2) Optical fiber

 

Transceiver module specifications

Table 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

 

Table 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

Table 10 LED description

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.

Figure 6 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. Table 11 describes the cables, LC connectors, and RJ-45 power connectors required for assembling a hybrid copper-fiber cable.

Table 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

Figure 7 shows the view of the RJ-45 power connector with product code 1408A047.

Figure 7 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.

 

Figure 8 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.

Figure 9 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 Figure 10 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.

Figure 10 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 Figure 11, 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).

Figure 11 Cutting off power wires

 

b.     As shown in Figure 12, 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.

Figure 12 Connecting RJ-45 power connectors

 

c.     Verify that the RJ-45 power connectors are connected securely.

Figure 13 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.

Table 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. Table 12Figure 14 shows the pinouts of an RJ-45 connector.

Figure 14 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 Figure 15.

·     Crossover—The pinouts are T568B compliant at one end and T568A compliant at the other end, as shown in Figure 16.

Figure 15 Straight-through cable

 

Figure 16 Crossover 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). Table 13 and Table 14 show their pinouts.

Table 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-

 

Table 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.

Figure 17 EWPAM1UPOE2 view

(1) Wall-mounting installation hole

(2) Power input cord

 

Figure 18 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

 

Table 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

Table 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