CORNING MobileAccess GX Series User manual

Corning MobileAccess GX System
Tune up procedure
Page1
Corning MobileAccess GX System Tune up procedure
Index
1INTRODUCTION...................................................................................................................... 2
2PREPARATION ....................................................................................................................... 2
2.1. PERSONAL PREPARATION............................................................................................... 2
2.2 POSITION AND CONNECTION........................................................................................... 3
2.3 POWER UP AND INDICATORS........................................................................................... 4
3. OMT OPERATION .................................................................................................................... 6
3.1 SET IP ADDRESS OF COMPUTER..................................................................................... 6
3.2 CONNECT DEVICE VIA OMT .............................................................................................. 6
3.3 EQUIPMENT PARAMETERS............................................................................................... 7

Corning MobileAccess GX System
Tune up procedure
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1 INTRODUCTION
This document is primarily written for those who are new to Corning MobileAccess GX
and wish to tune up the equipment.
The document is applicable to below products from Comba.
Model number: GX-P19S80A17-40 and GX-P19S80A17-40-DC
Corning MobileAccess OCH (Optical Central Hub) is needed to be connected to equip-
ment as a system for the entire test.
2 PREPARATION
This section will be discussing on:
1 - Preparation for those who are going to operate the equipment;
2 - How to connect to equipment for setting;
3 - LED Indicator description;
2.1. PERSONAL PREPARATION
1 - The following checklist will help to make sure relevant personnel get ready before op-
eration.
The personnel preparation list:
a. Only trained or qualified personnel is recommended for performing tuning with
equipment. Operating person should be with necessary knowledge of electronic, RF,
and familiar with local regulation, rules.
b. Personnel shall read through the manual/instructions/guide carefully before operation.
c. Check if there is warning/alert sign on the equipment to avoid possible danger.
d. Wear proper cloth. If necessary, equip with PPE (Personal Protective Equipment).
e. Before operation, procedures and data recording form should be prepared.
2 - Package inspection
Visual inspect the external product package, and check internal items according to pack-
ing list. Prepare ample space and easy accessible to socket-outlet. For tools reference
please find in manual.
3 - Tools preparation
Please prepare tools/cables and measuring instruments ready before hand-on. For tools
recommendation, please refer to product user manual.
4 - OCH preparation
An already tuned OCH is needed to provide an optical signal input for the equipment. For
more information about OCH, please refer to OCH user manual / operation guide.
Handling Precautions
This covers a range of activities including lifting, lowering, pushing, pulling, carrying, mov-
ing, holding or restraining an object, animal or person. It also covers activities that require
the use of force or effort, such as pulling a lever, or operating power tools.
Caution, Electrostatic Discharge (ESD)
Before removing the antistatic bag from repeater, enough caution shall be taken to avoid
ESD. The Anti-static Wrist Strap is recommended.

Corning MobileAccess GX System
Tune up procedure
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2.2 POSITION AND CONNECTION
1 - Equipment experimental position
Equipment shall be placed in stable position during testing, e.g. place on a table or stand
on the floor. Be aware of the table shall be firm enough to support the equipment.
2 - Connections:
Grounding Antenna Port 3
Antenna Port 2
Antenna Port 1
OCH
Computer
AUX_6
AUX_5
850MHz
CPL-50dB
AWS
CPL-50dB
1900MHz
CPL-50dB
EXT_ALM
SYS_ALM
COMM
ALM
RUN
LAN
800MHz AWS 1900MHz
Before power up:
a. Confirm equipment is well grounded;
b. Confirm equipment is connected to OCH via optical fiber;
c. Confirm equipment antenna ports are either connected to load or measuring instru-
ments.
- Lan cable to computer can be connected before or after power up.

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Tune up procedure
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2.3 POWER UP AND INDICATORS
Before power up, please check product voltage requirement, and make sure the equip-
ment is with good grounding protection.
Warning:
Always be caution to voltage safety. Before hands-on operation, check if the equipment is
powered off and disconnected from power supply or otherwise will cause personnel injury
and equipment damage.

Corning MobileAccess GX System
Tune up procedure
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1900MHz
AWS
LAN RUN
ALM
COMM
SYS_ALM
EXT_ALM
1900MHz
CPL-50dB
AWS
CPL-50dB
850MHz
CPL-50dB
AUX_5
AUX_6
LED
800MHz
Diagnostic LEDs of each unit are located on the bottom of enclosure; each indicates the
status of a particular function.
Identifier
Color
Indication
RUN
Green
On –The system is not ready (system need 2-3min after
power up to be ready)
Blink –The system is boot up and normal
Off –The system is no power supply or MCU is not working
ALM
Red
Off –No Alarm occurring
On –Alarm occurring
FSK
Green
Off –No communication between OCH & Equipment
Blink –Communication normal between OCH & Equipment

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Tune up procedure
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3. OMT OPERATION
3.1 SET IP ADDRESS OF COMPUTER
The equipment default IP address is “192.168.8.101/255.255.255.0”
The IP address of computer has to be set in the same subnet.
E.g. 192.168.8.10/255.255.255.0
Note: It’s strongly recommended to keep the equipment IP address in default value.
3.2 CONNECT DEVICE VIA OMT
Double click “CMA OMT Software V5.00” on the desktop after OMT installation.
Choose “Connection via Ethernet”.
Note: this is a special version of OMT. A general version of OMT is not applicable.
Click “Connect (F5)”in the “up-left corner”and click “connect”in the pop-up window, keep
every parameter in its default.

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Tune up procedure
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After successful connection, click “OK”in the pop up window.
3.3 EQUIPMENT PARAMETERS
Before tuning RF parameter, check equipment property parameters are correctly set.
Equipment Property parameters:
Serial No.: Identifier of the equipment. Every piece of equipment has a unique ID.
- Correct S/N ensures the communication between OCH and CRU.
Site ID & Site Sub ID: This is the indicator for Site information.
Firmware version: showing current software version in comba internal format.
- Make sure this is the expected firmware version.

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Tune up procedure
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Equipment RF Parameters:
Equipment RF Switch:
All switches are off of new equipment from the factory. Particular switch has to be
turned on for real application or RF testing.
Service On/Off (ATE) service 1-3:
(Manufacturer level control)
This switch has the highest priority. Turn on for expected service first.
Service On/Off service 1-3:
(User level control)
This switch has the second highest priority. Turn on for expected service.
PA On/Off service 1-3:
(User level control)
Turn on for expected service.
UL ALC:
This function enables ALC protection of UL high input power at -54dBm.
Strongly recommend to turn this switch on for normal application.
Optical AGC On/Off
This function enables the compensation of fiber optical loss.
Strongly recommend to turn this switch on for normal application.

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Tune up procedure
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Equipment Power:
DL Output Max Power service 1-3:
This parameter sets the maximum output level of each service. The range is from
16dBm –47dBm.
DL Output Power service 1-3:
This is the read only value of the DL power of each service.
FSK Rx Power Threshold:
Default is -65dBm, this value can be set smaller value if large optical loss is occurred.
Attenuators:
The output power can be controlled by setting different DCA (attenuators)
It is recommended to set “DL/UL Manual DCA”to change to attenuators to control the
output power.
After setting the “DL/UL Manual DCA”, “DL/UL operational DCA”will be refreshed to
the same value as “DL/UL Manual DCA”.