Horizon II macro

BSS12 Operation & Maintenance

Objectives

State the functional areas of the Horizon II

macro cabinet.

• Describe the functions and operation of

the Horizon II macro Digital modules.

• Describe the cabinet RF Components.

• Describe the RF Configurations used

with the Horizon II macro cabinet.

By the end of this chapter the student will be able to :-

Site

Controller

(HIISC)

CTU2 Cooling

Fans

Power

Supply

Units

(PSU)

Circuit

Breaker

Card

(CBC)

Alarm

Board

HORIZON II macro Cabinet Front View

Site I/O

Panel

Tx Blocks

Link

Interface

Board

SURF2

Power

Supply

EAS Alarm,

PIX 0 & 1

HORIZON II macro Cabinet Top View

Power Supply Units

Cabinet Power Supply

Maximum 4x PSU per cabinet – One for Redundancy

Depends on the number of Radios fitted.

The Cabinet can support the three types of power

supply

• +27V (negative earth)

• -48V (positive earth)

• Nominal 120/240V AC

-48v Power Supply Units

Power supply unit

Power Supply Units

All three unit types support the same PSU

Alarms:

• O/P over/under voltage.

• I/P under voltage.

• Over temperature.

• Internal Fan failure.

Circuit Breaker Card (CBC)

6x CCB for CTU2

2x Push Button HIISC

2x Push Button SURF2

1x Tx RF Blocks

1x FAN trays

Temperature control

Cabinet Temperature Control

• Operating range -5 C to +45 C

• Three Internal FAN units – speed controlled

• 3x Cabinet Temperature Sensors – » 1x (70 C) for cabinet alarm

» 2x (85 C) to shutdown the cabinet, reset at 55 C.

Cabinet Fan unit

Alarm Module

Cabinet Alarm Module

• Collects All internal Cabinet Alarms

• Controls the PIX connection (customer

external alarms)

• Process Antenna VSWR alarms

Note: NOT backwards compatible to the

Horizonmacro cabinet

Alarm Board

Mains

Door 1

LVD

Fan 0

Fan 1 & 2

ALL LEDs are

GREEN when the

equipment is OK

RED when

equipment is

faulty

Only 4x active Displays

HorizonII Site Controller (HSCII)

Horizon II Site Controller (HIISC)

• Performs functions of: MCUF, NIU, FMUX

and BPSM in Horizonmacro cabinet.

• Cabinet supports 2x HIISC cards

Master/Slave ( redundancy)

• Compact Flash card (32 Mbyte memory)

Status

LEDs

•States LEDs –

GREEN (normal

operation) RED

(Fault).

Compact

Flash Slot •Compact Flash

Card slot –

contains 32Mb

of memory.

TTY

MMI

•TTY MMI –

connection for 9

pin D type

connector. Reset

Buttons

Reset Buttons

CPU – is a Soft

Reset (Reset

Controllers

Main

Processors.

Software

remains in

RAM).

FULL – is a

Hard reset.

Removes

software from

memory.

CAL

Port

•CAL PORT –

Calibrates the

Sync Block. The

8K Reference is

used in GCLK

calibration.

NIU

Ethernet

Port

Synch/NIU

TTY PORT

•The NIU

Ethernet and

SYNC/NIU TTY

Port are for

factory use only.

H11SC Front

Panel

Horizon II macro HSCII Block diagram

E1 Inputs

x 6 Current

x 8 Future

Uplink RSL

Insertion

16Kbs only SMuRF

Sync, Mux, uBCU,

Replacement, FPGA

LAPD

Encode/Decode

Layer 2 processing

Field Programmable Gate Array

(FPGA)

similar function as the ASIC

64Kb switch

incapable of sub-rate switching

BTP function of the BTS

runs site software and

call processing functions

CTU2

dual carrier unit

single/dual carrier operation

single frequency band

Three on board

XMUX functions

FMUX equivalent

Second H2SC

configured for

redundancy

Cabinet Expansion

Cabinet Expansion

• The Cabinet can be expanded up to 3x

Horizon II macro Cabinets

• Can be expanded with Horizonmacro and

Mcell6 cabinet combinations.

• Expansion Kit – 1x XMUX card

1x Input/Output (I/O) card

1x 2m Fibre Optic cable

XMUX

in slot 0

• XMUX

Location

Input/Output Card I/O card

Site Expansion Board

Connects up to 3x extra cabinets

Fibre optic connections

GPS connector (not supported)

Input/Output (I/O) card

GPS

connection

Fibre

connections

IN/OUT

SITE I/O PANEL

CONFIGURATION

Expansion configurations

Horizon II

macro (6xCTU2)

X

M

U

X

Horizon II

macro (6xCTU2)

E1

Two Horizon II macro’s expanded.

Horizon II

macro (6xCTU2)

X

M

U

X

Horizon II

macro (6xCTU2)

Horizonmacro

(6 x CTU)

F

M

U

X

E1

Horizon II macro, expanded to a Horizon II macro and a Horizonmacro.

Expansion configuration (cont)

Horizon II

macro (6xCTU2)

X

M

U

X

Horizonmacro

(6 x CTU)

F

M

U

X

F

M

U

X

F

M

U

X

Horizonmacro

(6 x CTU)

E1

Horizonmacro controlling a Horizon II macro and another Horizonmacro.

M-Cell 6 controlling a Horizon II macro and a Horizonmacro.

Horizon II

macro (6xCTU2)

X

M

U

X

M-Cell 6

(6 x TCU)

F

M

U

X

F

M

U

X

F

M

U

X

Horizonmacro

(6 x CTU)

E1

Compact Transceiver Unit

(CTU2)

CTU2

Compact Transceiver Unit (CTU2)

Compact Transceiver Unit ( CTU2)

Single Density Mode – High Power 63W (48dbm) 900MHz

50W (47dbm) 1800MHz

Normal Power 20W (43dbm) 900MHz

16W (42dbm) 1800MHz

Double Density Mode –Normal Power 20W (43dbm) 900MHz

16W (42dbm) 1800MHZ

CTU2 backwards compatibility

Compact Transceiver Unit 2 (CTU2)

Backwards compatible with Horizonmacro Cabinet

(with minor limitations).

• Requires the correct software ( GSR6 HII)

• Can NOT support the CCB controller function

• O/P power reduced when in Double Density Mode

• BBH not supported

Compact Transceiver Unit 2 (CTU2)

TRANSMIT

RF OUT

TEST

INTERFACE TTY

INTERFACE

Radio

Status

LED

Tx

Status A

LED

Tx

Status B

LED

VCAT

INTERFACE

Surf2 to CTU2 Interface

CTU2 to SURF2 interconnection

Second SURF2 not supported

(4 branch diversity)

CTU2 DCS 1800 PA Diagram

F

PA Branch 1

PA Branch 2

PA Temp.

2nd Temp.

Fwd Power Detect A

Fwd Power Detect B

Rev Power Detect

Phase Adjust

Branch B VVA

Branch A VVA

PA Mode Switches

PA Pad Switches

Basic Block Diagram – TX (PA only)

RF Equipment

RF Equipment

Surf2 Sectorized Universal Receiver Front end (SURF2)

Surf2 Functional Diagram SURF2 Functional diagram

3x Ant ports with 2x Branches each

Expansion

Cabinet TX Blocks

Transmitter RF Blocks

RF Blocks:

• DUP - Duplexer

• HCU - Hybrid Combiner Unit

• DHU - Dual Hybrid combiner Unit

Connecting Panels

• Blanking Plate

• Feedthrough plate

Transmitter Blocks

Blanking Plate

Blanking Plate

Used to control the Air flow within the cabinet

Feedthrough Plate

Feedthrough Plate

Duplexer (DUP)

Duplexer- DUP

•Connects a single CTU2 to

a single Tx/Rx Antenna.

•Typical 1db loss.

DUP Functional Diagram

DUP Block diagram

VSWR

CTU2

DUP

Rx Filter

Tx Filter

VSWR

Monitor

Alarm

Board

Antenna To SURF

Tx

• The Antenna VSWR monitoring function is used to detect faults in antennas or antenna path connections.

VSWR Monitoring

Part of the Tx power

Power Indicator

Hybrid Combiner Unit (HCU) Hybrid Combiner Unit - HCU

HCU

•Used to connect 2x

CTU2 via a Hybrid

•Typical 3-4db loss

HCU Functional Diagram

HCU- Block diagram

Typical 3-4db loss

Dual Hybrid Combiner (DHU) Dual Hybrid Combiner Unit - DHU

Typical 6 db loss

DHU Functional Diagram Dual Hybrid Combiner Unit - DHU

6dbs typical

loss

Software and Database Requirements

Software and Database Requirements

• New Cabinet Type - horizonmacro2 (24)

- horizonmacro2_ext (25)

• Equipping the DRI Density is required

Single or Double

(called the associated DRI)

• Setting CTU2 to High Power (max_tx_bts= -1)

MMI Command : equip <site number> DRI

Enter the 1st and 2nd DRI id: 0 0

Enter the density of this DRI: SINGLE

Enter the cabinet identifier: 0

Enter the type of connection to the BTP: master

Enter the port to which the TCU is connected: 0

Enter the 1st and 2nd RTF id:

Enter the GSM cell ID where the DRI appears: 1 2 3 9 9 4 21

Enter antenna select number for this cell: 1

Does this DRI use tuneable combining: no

Enter diversity flag for this DRI: 1

Enter the fm cell type: 4

Equipping a DRI – Single Density

New line within

the command

MMI Command: equip <site number> DRI

Enter the 1st and 2nd DRI id: 0 0

Enter the density of this DRI: DOUBLE

Enter the 2nd DRI id of the associated DRI: 1

Enter the cabinet identifier: 0

Enter the type of connection to the BTP: master

Enter the port to which the TCU is connected: 0

Enter the 1st and 2nd RTF id:

Enter the GSM cell ID where the DRI appears: 1 2 3 9 9 4 64

Enter antenna select number for this cell: 1

Enter diversity flag for this DRI: 1

Enter the fm cell type: 4

Equipping a DRI – Double Density

Associated DRI Number

CTU2 High Power parameter

• DRI equipped in SINGLE Density Mode only

• Parameter max_tx_bts = -1 (per cell basis)

• Parameter tx_power_cap =1 (DCS1800 only)

• RF power EGSM900 DCS1800

63W (48dbm) 50W (47dbm)

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