Grass Valley 8935CF User Manual

8935CF

4 CH ELECTRICAL TO FIBER CONVERTER

Instruction Manual

SOFTWARE VERSION 1.0.0

071854300
MAY 2007

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8935CF

4 CH ELECTRICAL TO FIBER CONVERTER

Instruction Manual

SOFTWARE VERSION 1.0.0

071854300
MAY 2007

Contacting Grass Valley

International

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Copyright © Grass Valley. All rights reserved.
This product may be covered by one or more U.S. and foreign patents.

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Grass Valley Web Site

The www.thomsongrassvalley.com web site offers the following:

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data sheets, ordering guides, planning guides, manuals, and release notes
in .pdf format can be downloaded.

FAQ Database — Solutions to problems and troubleshooting efforts can be

found by searching our Frequently Asked Questions (FAQ) database.

Software Downloads — Download software updates, drivers, and patches.

4 8935CF — Instruction Manual

Contents

Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

8935CF 4 Channel Electrical to Fiber Converter Module. . . . . . . . . . . . . . . 9

About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Module Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Fiber Optic Cleaning Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Module Placement in the GeckoFlex Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Rear Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

SMV_SFP Submodule Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Front Module Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Attenuation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Electrical Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Electrical Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Fiber Optic Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Configuration and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Operating Modes Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Auto/Mute Mode (Default) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Fixed 270M/Mute Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Fixed 1.5G/Mute Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Auto/Bypass Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Fixed Bypass Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Local Configuration and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Onboard Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Top Edge LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Bottom Edge LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Local Mode Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Remote Monitoring and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

8900NET Module Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Web Browser Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Web Page Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Status Web Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Settings Web Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Slot Config Web Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Software Updating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Status Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Frame Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Web Browser Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

SNMP Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

8935CF — Instruction Manual 5

Contents

Power-Up Diagnostic Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Electronic Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Voltage Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Module Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

6 8935CF — Instruction Manual

Preface

About This Manual

This manual describes the features of the 8935CF module and the corre­sponding rear modules in the GeckoFlex frame. As part of this family of
modular products, it is subject to the Safety and Regulatory Compliance
information described in the GeckoFlex Frames Instruction Manual.

When using any of the fiber optic options, refer to the laser compliance
information in the GeckoFlex Frames Instruction Manual for safety informa­tion.

8935CF — Instruction Manual 7

Preface

8 8935CF — Instruction Manual

8935CF 4 Channel Electrical to Fiber Converter Module

Introduction

This manual covers installation, configuration, and operation of the 8935CF
4 Channel Electrical to Fiber Converter module.

Module Features

The 8935CF module is a four channel electrical to optical converter (dual
transmitter) with both electrical and fiber optic outputs. The module can
accommodate a variety of high definition video inputs as well as DVB/ASI,
AES, and GVG audio TDM interfaces.

The following features are available with this module:

• Two module set including a hot-swappable front and rear module and
up to two single mode SFP dual transmitter fiber optic submodules
mounted on the front module.

• Up to ten 8935CF modules in the same 2 RU GeckoFlex frame.

• Four electrical BNC inputs to up to four fiber optic outputs and an iden­tical electrical BNC output for each channel.

• Re-clocking for stable long distance signals or re-clocking bypass for
non-SDI signals.

• Supports both HD or SD formats and passes embedded audio present
in the incoming video stream.

• CWDM (Coarse Wavelength Division Multiplexing) capability when
combined with 8939FCA Passive CWDM Optical Mux/Demux
modules and 8935FC 4 Channel Fiber to Electrical Converter modules
and other fiber-ready modules.

• SNMP and product health monitoring is supported through the
8900NET module with applications such as NetCentral.

• Software updating using the NetConfig Networking application.

8935CF — Instruction Manual 9

Introduction

The 8935CF can be populated with any two of the following SMV_SFP
(Strap Mount Video Small Form-factor Pluggable) dual transmitter sub­modules, depending on the application desired:

• SFP-1310-STRX – Dual Transmitter with 1310nm FP lasers

• SFP-CWDM-1 – Dual Transmitter with CWDM lasers (1440/1490nm)

• SFP-CWDM-2 – Dual Transmitter with CWDM lasers (1510/1530nm)

• SFP-CWDM-3 – Dual Transmitter with CWDM lasers (1550/1570nm)

• SFP-CWDM-4 – Dual Transmitter with CWDM lasers (1590/1610nm)

Figure 1 illustrates an 8935CF module with a submodule and rear module

(rear module attached for clarity only).

Figure 1. 8935CF Module with Rear Module and Submodule

Fiber Optic Cleaning Requirement

Before making any fiber optic cable mating connections and after every
de-mating cycle, use an industry standard fiber optic cleaning kit,
including oil-free compressed air, to clean the fiber connectors and the con­nectorized fiber end faces. This helps ensure optimum performance of the
fiber optic interface. Industry standard fiber optic cleaning kits can be pur­chased on the web and in electronics stores.

10 8935CF — Instruction Manual

Installation

Installation

The 8935CF model consists of a front and rear module set that can only be
installed in a GeckoFlex frame. Two SFP fiber optic dual transmitter sub­modules, shipped separately, must also be installed for full functionality of
the module.

Note The 8935CF modules can only be installed in a GeckoFlex frame.

Installation of the 8935CF module set is a process of:

1. Placing the 8900CF-R rear module in a rear frame slot,

2. Installing the SFP fiber submodules on the front module,

3. Placing the front module in the corresponding front slot,

4. Cabling the signal ports, and

5. Setting module parameters with on-board switches or with the web

browser interface.

All GeckoFlex front and rear modules can be inserted and removed from
an GeckoFlex frame with power on.

Note Modules and submodules are sensitive to static damage, use standard

anti-static precautions when handling components.

Module Placement in the GeckoFlex Frame

There are ten front and rear cell locations in the 2 RU GeckoFlex frame
(Figure 2) to accommodate either audio, analog and digital video modules.

Figure 2. GeckoFlex Frame

8935CF — Instruction Manual 11

Installation

Use needlenose pliers
to pull out blank after
removing retainers.

Rear Module Installation

Each rear module or blank rear adapter cover is held in place by two
retainer strips as shown in Figure 3. To install a rear module into the frame,
follow these steps:

1. Loosen (but do not remove completely) the two screws holding each

retainer strip to the frame with a 2 mm (5/64”) hex screwdriver. Pull up
on the retainer to remove it, leaving the screws in place.

CAUTION Be careful to leave the screws in place as they can be easily lost or fall into

equipment below the frame creating a shorting hazard.

2. Remove the blank adapter covers on two adjacent slots by inserting

needlenose pliers into the top and bottom blank slots and pull it off.

Note To remove a rear module already installed, follow the same steps. It is helpful

to first remove the front module so the rear can be pulled out more easily.

3. Before installing the 8935CF rear module, check that the blue plastic

fiber optic connectors on the rear module are not mounted too rigidly.
They should not be locked tightly in place.You should be able to move
the connectors slightly to the left and right so they are flexible enough
to accept the front module fiber connector without damaging it.

4. Insert the rear module into the empty slots.

5. Replace each retainer strip over the two screws on both sides of the

module and push down to seat the retainer.

6. Tighten the screws for each retainer just until they are snug. Do not

force or torque the screws too tightly.

Figure 3. Installing Rear Module

12 8935CF — Instruction Manual

SMV_SFP Submodule Installation

LC Fiber Jumper Assembly

Dust Covers

SMV_SFP Submodule

Duplex end of LC jumper

Simplex end
of LC jumper

Two dual channel Tx-Tx SMV_SFP submodules must be installed on an
8935CF module to provide full functionality. The type of submodule
depends on the application of the module. The submodules must be one of
the following models from Grass Valley:

• SFP-1310-SDTX – Dual Transmitter with 1310nm FP lasers

• SFP-CWDM-1 – Dual Transmitter with CWDM lasers (1440/1490nm)

• SFP-CWDM-2 – Dual Transmitter with CWDM lasers (1510/1530nm)

• SFP-CWDM-3 – Dual Transmitter with CWDM lasers (1550/1570nm)

• SFP-CWDM-4 – Dual Transmitter with CWDM lasers (1590/1610nm)

Each submodule ships in a separate kit and must be installed by the cus­tomer on the front module.

Note For using the CWDM full functionality mux/demux format with the 8939CA

and the 8935FC modules, refer to CWDM Configuration on page 20 for spe­cific submodule installation location and cabling information.

Installation

The submodule kit includes one SMV_SFP submodule with dust cover pro­tector and a dual channel single mode standard LC fiber cable assembly
with dust covers on the fiber optic ferrules (glass ends of cable). A kit
example is shown in Figure 4.

CAUTION Use industry standard practice fiber optic cleaning and anti-static handling

procedures when installing and cabling the fiber optic devices. Refer to Fiber

Optic Cleaning Requirement on page 10.

Figure 4. SFP Submodule and Cable Assembly

8935CF — Instruction Manual 13

Installation

Arrow indicators

Submodule Installation Overview

The two SMV-SFP submodules are installed on the top and bottom sides of
the circuit board and must be cabled to the output connectors on the main
module with the cable assemblies provided. Figure 5 identifies the loca­tions of the hardware components, connectors, and plastic cable guides.

Figure 5. SFP Submodule Installation – Components

LC Fiber jumper assembly

SCA-2 connectorScrewsStraps

8543-12

Plastic cable guides Extended LC adapter

Each submodule type can be identified by a part number on the label
(Figure 6). The direction of the arrows on the label indicate that the device
is a dual transmitter, dual receiver, or transceiver. The device in Figure 6
illustrates a 1310nm dual transmitter.

On CWDM submodules (not shown), the frequency of the device will be
indicated by numbers between the arrows that correspond to the following
model numbers:

• SFP-CWDM-1 – 1440nm (44) and 1490nm (49)

• SFP-CWDM-2 – 1510nm (51) and 1530nm (53)

• SFP-CWDM-3 – 1550nm (55) and 1570nm (57)

• SFP-CWDM-4 – 1590nm (59) and 1610nm (61)

Figure 6. Submodule Identification

14 8935CF — Instruction Manual

Installation

Duplex end of
LC jumper

Simplex end of LC jumper

Channel 1 and Channel 2 Submodule and Fiber Cable Installation

On the top side of the module, install the submodule you wish to use for
the Channel 1 and Channel 2 outputs as follows:

1. Remove the black rubber dust cover from the SMV_SFP submodule.

2. Align the submodule with the right angle SFP SCA-2 connector (J1) and

the mounting screws on the 8935CF module (Figure 5 on page 14).

3. Loosen the two screws slightly (do not remove them completely) with

a crossblade screwdriver so the SMV_SFP straps slide under the screws.

4. Slide the submodule towards the SCA-2 connector so the electrical

connector on the submodule engages with the SCA-2 connector and the
straps are underneath the two screws.

5. Tighten the screws to secure the submodule to the front module.

6. Remove the dust covers from the LC Fiber Jumper assembly ferrules.

7. Clean the LC connectors before connecting them (and after every

de-mating cycle) using an industry standard fiber optic cleaning kit as
described in Fiber Optic Cleaning Requirement on page 10. Also visually
inspect the LC ferrules for damage or blockage before installing them
into the submodule.

Figure 7. Installing SMV_SFP on Top of 8935CF Module

8. Insert the duplex end of the LC jumper assembly (the two fiber optic

ferrules connected together) into the submodule by holding the strain
relief boot directly behind the connector housing as shown in Figure 7.
Push on the strain relief until you hear a click, indicating the connectors
are properly mated.

9. Insert the simplex end of the LC jumper assembly (the two fiber optic

connectors are separate) into the LC adapters at the rear of the module.

Note Make sure the Tx1 cable goes to the Ch 1 output LC adapter and the Tx2 cable

goes to the Ch 2 LC adapter.

8935CF — Instruction Manual 15

Installation

10. Secure the LC jumper assembly to the module by carefully inserting the

cables into the plastic fiber guides. Do not force the cables into the
guides or they can break.

Channel 3 and Channel 4 Submodule and Fiber Cable Installation

Repeat this procedure for the second submodule on the other side (bottom)
of the module. Figure 8 illustrates the bottom of the module. This sub­module will output Channel 3 and Channel 4 and will install in SCA-2 con­nector, J2.

Note Make sure the Tx3 cable goes to the Ch 3 output LC adapter and the Tx4 cable

goes to the Ch 4 LC adapter.

Figure 8. Installing SMV_SFP on Bottom of 8935CF Module

16 8935CF — Instruction Manual

Front Module Installation

After installing the rear module and SFP submodules on the front module,
install the front module as follows:

1. Remove the front cover of the frame.

2. Locate the corresponding front slot.

3. Before installing the module, set the Local/Remote onboard jumper as

described in Local/Remote Jumper on page 25.

4. Clean the fiber optic connections as described in the Fiber Optic Cleaning

Requirement on page 10.

5. Insert the front module so that the plastic card guides on the module

top and bottom edges go over the upper and lower raised rail guides on
the right of the top and bottom of the slot (Figure 9).

6. Carefully slide the module into the rear connector.

7. Lock the front module ejector tab into the locking pin.

Installation

8. Replace the front cover for configuring the module using remote

controls.

Figure 9. Front Module Installation

Card Carriers

Front Module Side View

Locking Pin

Card Carriers

8543_02

Module installed

Slide top and bottom card carriers on module
over top and bottom guides on right of slot.

8935CF — Instruction Manual 17

Installation

8543_03

8935CF-R

OUTOUT

IN OUT

CH1

IN

1

2

3

4

OUT

CH2

IN OUT

CH3

IN OUT

CH4

CH 1 Electrical In

CH 1 Electrical Out

CH 1 Fiber Out

CH 2 Fiber Out

CH 2 Electrical In

CH 2 Electrical Out

CH 3 Electrical Out

CH 3 Electrical In

CH 3 Fiber Out

CH 4 Fiber Out

CH 4 Electrical In

CH 4 Electrical Out

Cabling

Cabling is done on the rear BNCs of the 8935CF-R module illustrated in

Figure 10.

Note Read the precautions for handling fiber optics before making connections to

the fiber optic connectors as described in Fiber Optic Outputs on page 19.

Figure 10. 8935CF-R Rear Module

Attenuation Requirements

Some shorter length cable runs will require attenuation to prevent over­driving the receiver causing bit errors to occur on the fiber link. Use the fol­lowing guidelines for adding attenuation:

• The 1310nm Dual Transmitter (SFP-1310-SDTX) requires no attenuation
between fiber transmitter and receiver connections at any cable lengths.

• CWDM devices used with 8939FCA modules for a mux/demux config­uration (page 20) with a cable run from 0-12 km (7.5 miles), must be
attenuated by 3 dB between 8939CFA COM ports.

• All CWDM devices used in a point-to-point configuration with a cable
run from 0-20 km (12.4 miles), must be attenuated by 5 dB between
fiber transmitter and receiver connections.

18 8935CF — Instruction Manual