Olson Technology OTOHP-RRX User Manual

OPTICAL HEADEND PLATFORM

OTOHP-RRX QUAD REVERSE

RETURN PATH RECEIVER

INSTRUCTION MANUAL

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OTOHP-RRX Rev. X1 11/16/2010

www.olsontech.com

SAFETY WARNINGS

LASER RADIATION

The opticalfiber connectorattached tothe OTOHP-RRXreceiver emitsinvisible radiationthat can
cause permanent eye damage. . Operate the receiver
only with the proper optical fiber installed in the receiver optical connector. Power to the receiver
should be turned-off or preferably, disconnected whenever the optical connector cover is opened
and there is no installed fiber (as when the fiber connector is being installed or removed from the
transmitter connector).

NEVER

USEANY OPTICAL INSTRUMENT TO VIEWTHE OUTPUT OF THEOPTICAL FIBER

OR CONNECTOR “OPTICAL INSTRUMENT”INCLUDES MAGNIFYINGGLASSES, ETC.

NEVER

LOOK INTO THE OUTPUT OF THE CONNECTOR TO BE ATTACHED TO THE

RECEIVER

NEVER

LOOK INTO THE OUTPUT OF A FIBER CONNECTED TO A LASER

TRANSMITTER.

NEVER

LOOK INTO OR USE ANY OPTICAL INSTRUMENT TO VIEW THE DISTANT END
OF A FIBER THAT MAY BE CONNECTED DIRECTLY OR VIAAN OPTICAL SPLIT, TO A
TRANSMITTER THAT MAY BE OPERATING. THIS SPECIFICALLY APPLIES TO FIBERS
THATARE TO BE CONNECTED TO RECEIVERS OR OTHER DEVICES AT ANY
DISTANCE FROM THE LASER TRANSMITTER.

AVOID DIRECT EXPOSURE TO BEAM

PRECAUTIONS

Failure to comply with these general safety precautions and with the specific precautions
described elsewhere inthis manual violates the safety standards of the design, manufacture, and
intended useof the device. OlsonTechnology Inc. assumesno liabilityfor thecustomer's failure to
comply with theseprecautions.

Do not operate the receiver outside of its ratings. Doing so may result in unsatisfactory
performance, receiver failure,shortened receiver life span,or asafety hazard.

Do not attempt to modify or service any part of a receiver module. Doing so voids the warranty.
Return the unitto OlsonTechnology Inc.forservice andrepair.

Do not restrict airflow in front of or behind the chassis. The receiver should be operated in an
ambient environment between0 and 50ºC (32and 122ºF).

Store the moduleaway from corrosivematerials, at a temperaturebetween -40 and +70ºC(-40 and
+158ºF), and withno more than 85%humidity, non-condensing.

INTRODUCTION

The Olson Technology, Inc. Model OTOHP-RRX is aquad return path receiver module
optimized for good performance over a wide range of optical levels. This low-noise
receiver converts upstream optical signals into RF signals at the headend or remote
hubs. Internal selectable RF attenuators can be switched in or out to enable each
receiver to handle a very wide range of optical input signals. The module features four
completely independent receivers with four RF output ports, which are located on the
rear panel.The OTOHP-RRX provides +45dBmV output level. The front panel controls
allow local management and monitoring of the module while the RS-485 interface and
the OTOHP-NMS network management module allow remote management and
monitoring of themodule.

OPERATION PANEL DESCRIPTION

14

5
7
9

11

19

21

13

1615

1817

20

22

1. Display LED:

2. STA LED:

1

2 3
4

6
8

10

12

Display the status,MGC value andalarm code ofthe receiver.

Green indicates the module is operating properly. Red indicates the

module has alarms.

3. MGC LED:
interface

Green indicates the module is operating under MGC operation

.

4. TP LED: Greenindicates the module isworking under “TP”operation interface

5. ALM LED: When green, the OTOHP-RRX module is working under “ALM”
operation interface.

6. Up: Push button selects function orparameter setting.

,