Microlab GPSR400 Quick Start Manual

Quick Start Guide

Microlab, A Wireless Telecom Group Company, 25 Eastmans Road, Parsippany, NJ 07054

Tel: [phone] • [e-mail] • www.microlabtech.com • Fax: [phone]

GPSR400

GPSR400 Quick Start Guide

US Model, 4-Channel Remote Outdoor Unit

Rev. 7

Introduction

Microlab’s digital GPS repeater system can be used for cellular communications UTC synchronization for locations
where the GPS signals are not readily available. The system is built with Microlab’s patent-pending Digital SkyTim­ing Technology™ offering industry-first GPS signal transmission via CPRI for highly accurate timing and location. The
system offers several configurations for indoor and outdoor applications.

The GPS timing system is configured with indoor unit and outdoor unit. Both models sold sepately. Model GPSR400
is meant to work with Indoor Head-End Unit model GPSR116.

GPS Repeater Models

Model Description

GPSR116 Indoor head-end receiver, 16 RF output, 1RU

GPSR400 Outdoor GPS signal transmitter, 4 antenna inputs, US version

Unpacking and Inspection

Carefully unpack the GPSR400 remote unit
and check for damaged or missing parts. The
remote unit ships with the following:

• GPSR400 Remote Unit

• Two (2) 59” DC Power Cables
(Part#: 1-2273029-1)

• Quick Start Guide

GPSR400 - Front and Bottom Panels

Note: Product appearance varies by model

Hardware Needed

The following items are recommended for Setup and opera­tion:

• M10 Mounting Screws

• -48/+24VDC power supply with included power cable
OR Microlab GPSA003 AC/DC Adapter (not included)

• One ethernet cable (RJ45 connectors)

• One PC or Laptop with an ethernet port or ethernet USB
adapter

• Singlemode duplex fiber < 2km in length
(with Duplex LC/UPC Interfaces)

Please contact Sales for other fiber length requirements.

Service Locks

(M12) MALE
RECEPTACLE

DC POWER

Fiber status

LED

Ground

Nut

Antenna

RF Inputs

4.3-10 Female

OPTICAL ADAPTER,

LC/UPC DUPLEX,

SINGLEMODE

Microlab, A Wireless Telecom Group Company, 25 Eastmans Road, Parsippany, NJ 07054

Tel: [phone] • [e-mail] • www.microlabtech.com • Fax: [phone]

GPS status

LED

RJ45 CAT6

Ethernet

Ports

GPSR400 Quick Start Guide

US Model, 4-Channel Remote Outdoor Unit

System Connection Diagram

The following diagram illustrates how the GPS repeater system is utilized

GPS Repeater System

page 3

Fiber

Cables

Coax

Cables

Mounting Installation

This GPS signal transmission system is designed to be setup by professional communications systems
installers.

Remote model GPSR400 should be mounted securely using the four enclosure mounting brackets provided.
GPSR400 remote units should be mounted flat against a wall or column with connection panel at bottom.

Provide adequate space of at least 1 foot at the bottom for all system connections.

In a well structured support wall that it is reinforced with a 3/4 inch thick plywood of additional backing,
mount the enclosure using four (4) M10 screws (not included) to bear the unit weight.

Microlab, A Wireless Telecom Group Company, 25 Eastmans Road, Parsippany, NJ 07054

Tel: [phone] • [e-mail] • www.microlabtech.com • Fax: [phone]

GPSR400 Quick Start Guide

US Model, 4-Channel Remote Outdoor Unit

page 4

Connections RF, Optical, and Ethernet

Follow these steps for connecting and disconnecting RF and optical fiber cables to the unit. Make all connec­tions before powering up the remote unit.

Connect fiber optic and RF cables as shown in the System Connection Diagram.

It is recommended that the companion Head End Unit has been properly installed, Fiber-Fed, and Pow­ered ON before Installing the Remote unit. Please refer to Head End Unit User Manual.

If Head-End unit is not installed, skip the Fiber LED status verification in the “LED/System Verification”
section.

Sequence to connect:

1. Connect System Ground.

- The remote unit comes with a .25-20FLANGENUT grounding lug. A grounding wire of suitable
gauge must be used to ground to a common bus bar in the Telecom room according to local and
building regulations.

Ground Lug

2. Connect GPS Antennas to ports GPS In 1, GPS In 2, GPS In 3, and GPS In 4.

- Two (2) antennas required for operation.

- Apply coupling torque of 5 Nm to 4.3-10 connectors

- Only use operator approved GPS Antennas

GPS IN 1

GPS IN 2

GPS IN 3

GPS IN 4

Microlab, A Wireless Telecom Group Company, 25 Eastmans Road, Parsippany, NJ 07054

Tel: [phone] • [e-mail] • www.microlabtech.com • Fax: [phone]

GPSR400 Quick Start Guide

US Model, 4-Channel Remote Outdoor Unit

page 5

Connections RF, Optical, and Ethernet (Continued)

3. Connect Singlemode duplex fiber with Duplex LC/UPC Interfaces to optical port F/O 1 (Other Interfaces
available)

- Fiber length must be shorter than 2km Please contact Sales for other fiber length requirements

- Clean fiber before connecting

- Optical ports can be connected in any manner

- Only one optical fiber connection needed for operation.

- Recommended second fiber connected to optical port F/O 2 for redundancy.

F/O 1

F/O 2

LC/UPC Duplex

Interface

4. (Optional) Connect Ethernet Cable to the unit’s Ethernet Local port
Local/Debug port used for on-site debugging while maintaining connection to the NOC (Network

operations center)

Note: Both Ethernet ports on the GPSR400 are a transparent bridge. Both Remote Unit and Head­End supports Ethernet over CPRI. Either unit can provide a local network connection to the other. See section
“System Configuration and Operation”

Local

DO NOT CONNECT THE REMOTE UNIT AND HEAD-END TO THE SAME SWITCH. CONNECTING BOTH UNITS ON

Microlab, A Wireless Telecom Group Company, 25 Eastmans Road, Parsippany, NJ 07054

Tel: [phone] • [e-mail] • www.microlabtech.com • Fax: [phone]

Local/
Debug

THE SAME LAN WILL CREATE A BRIDGE LOOP