Grass Valley 8935CF User Manual

8935CF

4 CH ELECTRICAL TO FIBER CONVERTER

Instruction Manual

SOFTWARE VERSION 1.0.0

071854300
MAY 2007

Affiliate with the N.V. KEMA in The Netherlands

CERTIFICATE

Certificate Number: 510040.001

The Quality System of:

Grass Valley, Inc.

400 Providence Mine Road
Nevada City, CA 95945
United States

15655 SW Greystone Ct.
Beaverton, OR 97006
United States

10 Presidential Way
3

rd

Floor, Suite 300
Woburn, MA 01801
United States

Nederland B.V.
4800 RP BREDA
The Netherlands

Weiterstadt, Germany
Brunnenweg 9
D-64331 Weiterstadt
Germany

Rennes, France
Rue du Clos Courtel
Cesson-Sevigne, Cedex
France

Technopole Brest Iroise
CS 73808
29238 Brest Cedex 3
France

17 rue du Petit Albi-BP 8244
95801 Cergy Pontoise
Cergy, France

2300 South Decker Lake Blvd.
Salt Lake City, UT 84119
United States

7140 Baymeadows Way
Suite 101
Jacksonville, FL 32256
United States

Including its implementation, meets the requirements of the standard:

ISO 9001:2000

Scope:
The design, manufacture and support of video hardware and software products and
related systems.

This Certificate is valid until: June 14, 2009
This Certificate is valid as of: August 30, 2006
Certified for the first time: June 14, 2000

H. Pierre Sallé
President
KEMA-Registered Quality

The method of operation for quality certification is defined in the KEMA General Terms
And Conditions For Quality And Environmental Management Systems Certifications.
Integral publication of this certificate is allowed.

KEMA-Registered Quality, Inc.

4377 County Line Road
Chalfont, PA 18914
Ph: [phone]
Fax: [phone]

CRT 001 073004

ccredited By:

ANAB

A

8935CF

4 CH ELECTRICAL TO FIBER CONVERTER

Instruction Manual

SOFTWARE VERSION 1.0.0

071854300
MAY 2007

Contacting Grass Valley

International

Support Centers

Local Support

Centers

(available

during normal

business hours)

France

24 x 7

Australia and New Zealand: [phone] Central/South America: [phone]

Middle East: [phone] Near East and Africa: [phone] or [phone]

Europe

[phone] or [phone]
[phone] or [phone]

Hong Kong, Taiwan, Korea, Macau: [phone] Indian Subcontinent: [phone]

Asia

Southeast Asia/Malaysia: [phone] Southeast Asia/Singapore: [phone]
China: [phone] Japan: [phone]

Belarus, Russia, Tadzikistan, Ukraine, Uzbekistan: [phone] Switzerland: [phone]
S. Europe/Italy-Roma: [phone] -Milan: [phone] S. Europe/Spain: [phone]
Benelux/Belgium: [phone] Benelux/Netherlands: [phone] N. Europe: [phone]
Germany, Austria, Eastern Europe: [phone] UK, Ireland, Israel: [phone]

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

United States/Canada

24 x 7

[phone] or [phone]

Grass Valley Web Site

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

Online User Documentation — Current versions of product catalogs, brochures,

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

Electrical Inputs

Connect a signal conforming to the to the specifications given in Tab le 6 on

page 47 to the coax inputs for Channel 1 -4 as labeled on the rear of the

8935CF-R module.

Electrical Outputs

There are four electrical coax video outputs corresponding to Channel 1-4
as labeled on the rear of the 8935CF-R module.

Fiber Optic Outputs

There are four fiber optic output ports corresponding to Channel 1-4 as
labeled on the rear of the 8935CF-R module (Figure 10 on page 18).

Note Before making any fiber connections, follow the required fiber optic cleaning

recommendations given in Fiber Optic Cleaning Requirement on page 10.

For the fiber output ports, the 8935CF-R rear module shall follow the
channel allocation convention shown in Figure 11. Optical channel 1 and
channel 3 are mapped to the B side of standard duplex fiber connector and
channel 2 and channel 4 are mapped to the A side of a standard duplex fiber
connector.

Installation

Figure 11. 8935CF to 8935CF Fiber Transmit Channels

8935CF to 8935FC Connections

When connecting an 8935CF module directly to an 8935FC (point-to-point),
a non-crossing duplex fiber cable is required shown in Figure 12. Refer to

Attenuation Requirements on page 18 for cable length attenuation notes.

Non-crossing is in reference to the logical A/B nomenclature associated
with the duplex connector illustrated below. Side 1A connects to side 2A
and side 1B connects to side 2B. Refer to

Figure 12. Non-Crossing Duplex Fiber Cable

8935CF — Instruction Manual 19

Installation

8935CF

Coax 1-4 In

Fiber 1-4 Out

8935CF

Coax 5-8 In

Coax In

Fiber 1-4 Out

Fiber Out

8935FC

Fiber 1-4 In

Coax 1-4 Out

8935FC

Fiber 1-4 In

Fiber In

Coax 5-8 Out

Coax Out

8939CFA 8939CFA

GeckoFlex module

with 1310nm SFP

GeckoFlex module

with 1310nm SFP

8543_11r0

CWDM Configuration

The 8935CF module can be used for CWDM (Coarse Wavelength Division
Multiplexing) in various configurations in conjunction with 8939FCA
modules and 8935FC modules as well as other fiber-ready modules from
Grass Valley.

The optimum use of CWDM involves the ability to multiplex and demulti­plex up to nine channels of video in as shown in the simple block diagram
in Figure 13.

Figure 13. Simple CWDM Block Diagram

When an 8935CF module is populated with CWDM submodules, a stan­dard crossing duplex cable is required when connecting the 8935CF
modules to the 8939CFA modules.

Crossing is in reference to the logical A/B nomenclature associated with
the duplex connector illustrated in Figure 14 where side 1A connects to
side 2B and side 1B connects to side 2A.

Figure 14. Standard Crossing Duplex Fiber Cable

20 8935CF — Instruction Manual

Installation

To utilize this full Mux/Demux application, the following Grass Valley
modules are needed:

• Two 8935CF 4 Channel Electrical to Fiber Converter modules with one

of each type of CWDM submodule

• Two 8935FC 4 Channel Fiber to Electrical Converter modules with one

of each type of CWDM submodule

• Two fiber-ready Grass Valley GeckoFlex modules with 1310nm sub-

modules

As shown in the detailed block diagram in Figure 15 on page 22, two
8935CF (Electrical to Fiber converters) at Location A are used to feed 8
channels of video to an 8939CFA. To utilize this application, one of each of
the following four CWDM submodule types must be installed on the two
8935CF modules:

• SFP-CWDM-1 Dual Transmitter (1490nm and 1470nm frequencies)

• SFP-CWDM-2 Dual Transmitter (1510nm and 1530nm frequencies)

• SFP-CWDM-3 Dual Transmitter (1550nm and 1570nm frequencies)

• SFP-CWDM-4 Dual Transmitter (1590nm and 1610nm frequencies)

Note The four submodules can be installed in any location on the two 8935CF

modules as long as the outputs are cabled to the correct frequency input on
the 8935CFA. The installation configuration shown here is for clarity only.

The 1310nm fiber output from a Grass Valley GeckoFlex module is cabled
to the EXP (Expansion) port on the 8939CFA.

The 8939CFA module multiplexes these 9 frequencies down to a single
output from the COM port. A single fiber cable carries these 9 video fiber
channels to the COM port of the 8939CFA at Location B.

The 8939CFA at Location B acts as a demultiplexer and outputs 9 fiber
video channels to two 8935FC (fiber to electrical) modules, each with two
SFP-DRX-1 Dual Receiver submodules installed and a Grass Valley
fiber-ready module. The SFP-DRX-1 submodule will accept input frequen­cies from 1270nm to 1610nm.

Refer to Attenuation Requirements on page 18 concerning the attenuation
needed depending on the length of cable run between 8939CFA COM
ports.

8935CF — Instruction Manual 21

Installation

8543_10

8939FCA

8935CF

Fiber Out 1

to 1610nm

Fiber In 1

from 1610nm

Fiber In 2

from 1590nm

Fiber In 3

from 1570nm

Fiber In 4

from 1550nm

Fiber Out 3

to 1570nm

Fiber Out 4

to 1550nm

Fiber Out 2

to 1590nm

Fiber Out 1

to 1530nm

Fiber Out 3

to 1490nm

Fiber Out 4

to 1470nm

Fiber Out 2

to 1510nm

Electrical

Inputs

Multiplexer

Demultiplexer

Top Submodule

Bottom Submodule

8935CF

SFP-CWDM-3

1550nm & 1570nm

Fiber In 1

from 1530nm

Fiber In 2

from 1510nm

Fiber In 3

from 1490nm

Fiber In 4

from 1470nm

Top Submodule

SFP-CWDM-4

1590nm & 1610nm

Bottom Submodule

SFP-CWDM-1

1470nm & 1490nm

SFP-CWDM-2

1510nm & 1530nm

8935FC

Top Submodule

Bottom Submodule

SFP-DRX-1

1270 > 1610nm

Top Submodule

SFP-DRX-1

1270 > 1610nm

Bottom Submodule

SFP-DRX-1

1270 > 1610nm

SFP DRX-1

1270 > 1610nm

COM EXP

CH1

1470nm

CH2

1490nm

CH4

1530nm

CH3

1510nm

CH4

1570nm

CH5

1550nm

CH8

1610nm

CH7

1590nm

8939FCA

COM EXP

CH1

1470nm

CH2

1490nm

CH4

1530nm

CH3

1510nm

CH4

1570nm

CH5

1550nm

CH8

1610nm

CH7

1590nm

8935FC

Electrical

Outputs

Location A Location B

8935FC Fiber Inputs

1

2

4

3

IN IN

8935CF Fiber Outputs

1

2

4

3

OUT OUT

GeckoFlex Fiber-Ready Module

1310-DTL

Submodule

GeckoFlex Fiber-Ready Module

1310-DRL

Submodule

Ch 1

Ch 2

Ch 3

Ch 4

Ch 1

Ch 2

Ch 3

Ch 4

Coax In

Fiber Out

Ch 1

Coax

Ouputs

Ch 3

Ch 4

Ch 2

Ch 1

Ch 2

Ch 3

Ch 4

Ch 1

Ch 3

Ch 4

Ch 2

Ch 1

Ch 2

Ch 3

Ch 4

Distance of

up to 50km

( see note

for inline

attenuation

requirements)

*

Figure 15. CWDM Configuration

22 8935CF — Instruction Manual

Configuration and Monitoring

8935CF module configuration and monitoring can be performed locally
using the onboard controls or using a web browser GUI interface when the
8900NET Network Interface module is present in the GeckoFlex frame.
Control and monitoring is described in the following sections:

• Operating Modes Overview – page 23

• Local Configuration and Monitoring – page 25

• Remote Configuration and Monitoring – page 32

Operating Modes Overview

Each of the four channels must be configured for the desired operating
mode. This can be done using the onboard switches or on the Settings web
page using the web browser interface. The five different modes of opera­tion are described in this section. Input signal monitoring differs between
modes as described in each mode section below. For an input signal moni­toring summary, refer to Table 3 on page 30.

Configuration and Monitoring

The 8935CF supports the following modes of operation:

•Auto/Mute mode

• Fixed 270M/Mute mode

•Fixed 1.5G/Mute mode

• Auto/Bypass mode

• Fixed/Bypass mode

Auto/Mute Mode (Default)

In this mode, the electrical inputs are equalized and fed to the reclocker. If
the specific bit rates of 270Mb/s or 1.5Gb/s are analyzed by the module, it
will reclock the signal at the determined bit rate and feed this signal to both
the electrical BNC and the fiber optic outputs. With input reporting
enabled, the input signal will be reported as Present.

If the input signal is not 270Mb/s or 1.5Gb/s or the signal input is not
present, the output of the reclocker will be muted and the outputs will be
static (muted). With input reporting enabled, the input signal will be
reported as Not Present.

8935CF — Instruction Manual 23

Configuration and Monitoring

Fixed 270M/Mute Mode

In this mode, the electrical inputs are equalized and fed to the reclocker. If
the bit rate is analyzed as 270Mb/s, the module will reclock the signal at the
determined bit rate and feed this signal to both the electrical BNC and the
fiber optic outputs. With input reporting enabled, the input signal will be
reported as Present.

If no input signal or a signal other than 270Mb/s is detected by the module,
the output of the reclocker will be muted and the outputs will be static
(muted). With input reporting enabled, the signal input will be reported as
Not Present.

Fixed 1.5G/Mute Mode

In this mode, the electrical inputs are equalized and fed to the reclocker. If
the bit rate is analyzed as 1.5Gb/s, the module will reclock the signal at the
determined bit rate and feed this signal to both the electrical BNC and the
fiber optic outputs. With input reporting enabled, the input signal will be
reported as Present.

If no input signal or a signal other than 1.5Gb/s is detected by the module,
the output of the reclocker will be muted and the outputs will be static
(muted). With input reporting enabled, the signal input will be reported as
Not Present.

Auto/Bypass Mode

In this mode, the electrical inputs are equalized and fed to the reclocker.
The bit rate is analyzed by the module. If the bit rate is analyzed as
270Mb/s, 1.5Gb/s or any bit rate above 19Mb/s, the module will reclock
the signal at the determined bit rate and feed this signal to the both the elec­trical BNC and the fiber optic outputs. With input reporting enabled, the
input signal will be reported as Present.

If a bit rate other than 270Mb/s or 1.5Gb/s is detected by the module or no
input signal is detected, reclocking will not be performed and the signal
will be automatically bypassed to the outputs. With input reporting
enabled, the input signal will be reported as Not Monitored.

Fixed Bypass Mode

In this mode, the electrical inputs are equalized and the reclocker is
bypassed regardless of the electrical input data. The bypassed signal is fed
to both electrical BNC and the fiber optic outputs.

Note In this mode only, HD signals will be invalid on the electrical outputs due to

an SD slew rate applied to the drivers on the electrical BNCs.

24 8935CF — Instruction Manual

With input reporting enabled, the input signal will be reported as Present

8543_07

Local/Remote
Jumper, J8

Rotary Switch, S2

Paddle Switch, S1

for all bit rates above 19Mb/s. Inputs not recognized by the module will be
reported as Not Monitored.

Local Configuration and Monitoring

The 8935CF module can be configured and monitored locally (from the
front edge of the circuit board) using the rotary and paddle switches and
the LEDs mounted on the top and bottom front edge of the module. LEDs
are used to indicate status of the signals and the current settings.

Onboard Controls

Local/Remote Jumper

The on-board jumper Local/Remote jumper, J8, (Figure 16) is set at the
factory for local and remote (LOC/REM position, pins 2-3) to allow remote
control. It can be changed to lock out remote control if desired (LOC posi­tion, pins 1-2).

Configuration and Monitoring

Rotary and Paddle Switches

Switch S1 and S2 on the front edge of the module are used for setting the
operating mode of each channel. Refer to Local Mode Configuration on

page 31 for using these controls.

Figure 16. Local/Remote Jumper and Onboard Controls

8935CF — Instruction Manual 25

Configuration and Monitoring

8543_06

FAULT COMM REM OVR

SFP1

SFP2

CONFIG POWER

The bi-color (red or yellow)
SFP1 and SFP2 LEDs
have four states:

All Off,
Red on,
Red blinking,
or Yellow on.

Top Edge LEDs

The LEDs and onboard controls on the top front edge of the circuit board
are shown in Figure 17. LED color and conditions are described in Tab le 1

on page 27. Mode configuration using the front edge controls is described

in Local Mode Configuration on page 31.

Figure 17. Top Edge LEDs and Controls

26 8935CF — Instruction Manual

Table 1. Top Edge LED Names and Conditions

LED Indication Condition

Normal operation, module OK.

Module has detected an internal fault.

Configuration problems. Check inputs and settings. Missing video.

No activity on frame communication bus.

Locate Module command received by the module from a remote control system.

Activity present on the frame communication bus.

Module is in normal operating mode, no configuration change in progress or initialization complete.

Module is initiating or changing operating modes.

Locate Module command received by the module from a remote control system.

No power to module or module’s DC/DC converter failed.

Normal operation, module is powered.

Not used in this application.

The SFP submodule in position 1 (top of module) has an internal fault.

The SFP submodule in position 2 (bottom of module) has an internal fault.

FAULT

(red)

COMM

(yellow)

CONFIG
(yellow)

PWR

(green)

REM OVR

(yellow)

SFP1

(bi-color

red/yellow)

SFP2

(bi-color

red/yellow)

Off

On continuously

Flashing

Off

Flashing

Pulse

(short duration

Off

On continuously

Flashing

Off

On continuously

Off

On continuously

Off No SFP submodule is not installed in position 1 (top of module).

Yellow on A supported SFP submodule is installed in position 1 (top of module). Normal operation.

Red flashing An unsupported SFP submodule is installed in position 1 (top of module).

Red on

continuously

Off No SFP submodule is not installed in position 2 (bottom of module).

Yellow on A supported SFP submodule is installed in position 2 (bottom of module). Normal operation.

Red flashing An unsupported SFP submodule is installed in position 2 (bottom of module).

Red on

continuously

Configuration and Monitoring

8935CF — Instruction Manual 27

Configuration and Monitoring

8543_05

BYP HD SD PRES

CH1

CH2

CH3

CH4

AUTO/BY P

AUTO/MUTE

270M/MUTE

1.5G/MUTE

FIXED/BYP

Bottom Edge LEDs

The monitoring and status LEDs on the bottom front edge of the circuit
board are shown in Figure 18. LED color and conditions are described in

Table 2 on page 29. Refer also to Ta bl e 3 on pa ge 30 for a summary of inter-

preting the LED states.

Figure 18. Bottom Edge LEDs and Controls

28 8935CF — Instruction Manual

Table 2. Bottom Edge LED Names and Meaning

LED Indication Condition

BYP (CH1-4)

(yellow)

HD (CH1-4)

(yellow)

SD (CH1-4)

(yellow)

PRES (CH1-4)

(green)

AUTO/MUTE

(yellow)

270M/MUTE

(yellow)

1.5G/MUTE
(yellow)

AUTO/BYP

(yellow)

FIXED/BYP

(yellow)

Off

On continuously

Off

On continuously

Off

On continuously

Off

On continuously

Flashing

Off

On continuously

Off

On continuously

Off

On continuously

Off

On continuously

Off

On continuously

Channel is not in bypass mode.

Channel is in bypass mode.

High Definition (HD) is not supported in the currently selected operating mode or HD is supported in current
mode but input is not 1.5 Gb/s.

HD is supported in the current mode, the input is 1.5Gb/s, and is locked.

Standard definition (SD) is not supported in the currently selected operating mode or SD is supported in current
mode but input is not 270Mb/s.

SD is supported in the current mode, the input is 270Mb/s, and is locked.

No input or the incorrect input standard is present in the current operating mode.

The correct input standard is present. in the current operating mode.

Input is indeterminate. In AUTO/BYP or FIXED/BYP mode, if the input signal is less than 19 Mb/s (such as AES),
the carrier detect circuit will not detect an input signal.

AUTO/MUTE is not the current operating mode selected.

AUTO/MUTE is the current operating mode selected.

270M/MUTE is not the current operating mode selected.

270M/MUTE is the current operating mode selected.

1.5G/MUTE is not the current operating mode selected.

1.5G/MUTE is the current operating mode selected.

AUTO/BYP is not the current operating mode selected.

AUTO/BYP is the current operating mode selected.

FIXED/BYP is not the current operating mode selected.

FIXED/BYP is the current operating mode selected.

Configuration and Monitoring

8935CF — Instruction Manual 29

Configuration and Monitoring

Tab le 3 outlines the conditions that will result in the reported state of the

input being Present or Not Present with the onboard LEDs and the condi­tions of the output based on the operating mode, the Input Presence, the
actual input standard, and the Input Reporting State.

Table 3. Reported Input Status Summary

Operating

Mode

Fixed Bypass Not Present N/A Blinking Off Off Yellow Input Signal

Fixed Bypass Present N/A Green Off Off Yellow Input Signal

Auto/Bypass Not Present N/A Blinking Off Off Yellow Input Signal

Auto/Bypass Present

Auto/Bypass Present 270Mb/s Green Yellow Off Off

Auto/Bypass Present 1.5Gb/s Green Off Yellow Off

Auto/Mute Not Present N/A Off Off Off Off Mute

Auto/Mute Present

Auto/Mute Present 270Mb/s Green Yellow Off Off

Auto/Mute Present 1.5Gb/s Green Off Yellow Off

Fixed 270M/Mute Not Present N/A Off Off Off Off Mute

Fixed 270M/Mute Present Not 270Mb/s Off Off Off Off Mute

Fixed 270M/Mute Present 270Mb/s Green Yellow Off Off

Fixed 1.5G/Mute Not Present N/A Off Off Off Off Mute

Fixed 1.5G/Mute Present Not 1.5Gb/s Off Off Off Off Mute

Fixed 1.5G/Mute Present 1.5Gb/s Green Off Yellow Off

Input

Carrier

Detect

Reclocker

Locked

Not 270M or

1.5Gb/s

Not 270M or

1.5Gb/s

PRES

LED

Green Off Off Yellow Input Signal

Off Off Off Off Mute

SD

LED

HD

LED

BYP
LED

Output Reporting

Reclocked

270Mb/s

Reclocked

1.5Gb/s

Reclocked

270Mb/s

Reclocked

1.5Gb/s

Reclocked

270Mb/s

Reclocked

1.5Gb/s

Reported

Input State

Disabled Not Monitored

Enabled Not Monitored

Disabled Not Monitored

Enabled Present

Disabled Not Monitored

Enabled Not Monitored

Disabled Not Monitored

Enabled Present

Disabled Not Monitored

Enabled Present

Disabled Not Monitored

Enabled Present

Disabled Not Monitored

Enabled Not Present

Disabled Not Monitored

Enabled Not Present

Disabled Not Monitored

Enabled Present

Disabled Not Monitored

Enabled Present

Disabled Not Monitored

Enabled Not Present

Disabled Not Monitored

Enabled Not Present

Disabled Not Monitored

Enabled Present

Disabled Not Monitored

Enabled Not Present

Disabled Not Monitored

Enabled Not Present

Disabled Not Monitored

Enabled Present

30 8935CF — Instruction Manual

Local Mode Configuration

Set the operating mode for each channel using the two local onboard
control components described below and shown in Figure 16 on page 25.
Operating modes are described in Operating Modes Overview on page 23.

• Function (rotary) switch (S2) – this switch is used to access each of the
four channels for configuration. The switch has 16 possible positions (0
through 9 and A through F). Only positions 1, 2, 3, 4, and F are used (see

Tab le 4 ).

Note The Function switch should be parked in an unused position such as 0 during

normal operation to avoid changing the mode accidently with the paddle
switch.

• Paddle switch (S1) – scrolls through the available modes for the selected
channel when the switch is held momentarily in either the up or down
position.

• CONFIG (configuring) LED – when on, indicates the module is initial­izing or processing configuration information.

Configuration and Monitoring

Table 4. Mode Configuration Functions

Function

Switch

Setting

0– –

1 Increment Decrement

2 Increment Decrement

3 Increment Decrement

4 Increment Decrement

5-9 – –

A-E – –

F Recall

Paddle

Switch Up

Paddle

Switch Down

Function Description

Park position for normal operation (paddle switch has no effect)

Set Channel 1 operating mode as Auto/Mute, Fixed 270M/Mute,
Fixed 1.5G/Mute, Auto/Bypass, or Fixed Bypass.

Set Channel 2 operating mode as Auto/Mute, Fixed 270M/Mute,
Fixed 1.5G/Mute, Auto/Bypass, or Fixed Bypass.

Set Channel 3 operating mode as Auto/Mute, Fixed 270M/Mute,
Fixed 1.5G/Mute, Auto/Bypass, or Fixed Bypass.

Set Channel 4 operating mode as Auto/Mute, Fixed 270M/Mute,
Fixed 1.5G/Mute, Auto/Bypass, or Fixed Bypass.

Not used

Recall factory defaults (all channels have Reporting Enabled and
Auto/Mute mode selected).

8935CF — Instruction Manual 31

Configuration and Monitoring

Remote Monitoring and Controls

The 8935CF module can be configured and monitored using the web-based
GUI available when an 8900NET module is installed in the GeckoFlex
frame.

Note The module cannot be controlled with the Newton Control Panel.

8900NET Module Information

Refer to the 8900NET Network Interface Module Instruction Manual for infor­mation on the 8900NET Network Interface module and setting up and
operating the GeckoFlex frame network.

Note The 8900NET module in the GeckoFlex frame must be running software

Web Browser Interface

version 4.0.2 or higher for proper remote and control panel operation.
Upgrade software and instructions for the 8900NET can be downloaded from
the Grass Valley web site.

The web browser interface provides a graphical representation of module
configuration and monitoring.

Use of the web interface offers the following considerations (when appli­cable for the module):

• Provides complete access to all module status and configuration func­tions, including factory parameter default recalls, slot configuration,
and SNMP monitoring controls.

• Web access will require some normal network time delays for pro­cessing of information.

• Configuration parameter changes may require pressing

Enter, upload processing time, and a manual screen refresh to become

effective.

• Web interface recommended for setting up module and reporting
status for SNMP and monitoring.

Refer to the Frame Status page shown in Figure 19 on page 33. The modules
can be addressed by clicking either on a specific module icon in the frame
status display or on a module name or slot number in the link list on the
left.

Apply button or

Note The physical appearance of the menu displays on the web pages shown in

this manual represent the use of a particular platform, browser and version
of 8900NET module software. They are provided for reference only. Displays
will differ depending on the type of platform and browser you are using and
the version of the 8900NET software installed in your system. This manual
reflects 8900NET software version 4.0.2, required for this module.

32 8935CF — Instruction Manual

Configuration and Monitoring

8543_01r0

The Links section lists the frame and its current modules. The selected link's Status
page is first displayed and the sub-list of links for the selection is opened. The sub-list
allows you to select a particular information page for the selected device.

Content display section

displays the information page
for the selected frame or module (frame slot icons are also
active links).

Refresh button for manual
update of page

For information on status and fault monitoring and reporting shown on the
Status page, refer to Status Monitoring on page 50.

Figure 19. GeckoFlex Frame Status Page

8935CF — Instruction Manual 33

Configuration and Monitoring

Web Page Links

The web interface GUI provides the following links and web pages for the
8935CF modules (Figure 20):

• Status – reports input video status for each of the electrical BNC inputs,

• Settings – reports the input signal status, locked rate, and SFP device

• Slot Config – provides Locate Module and Slot Memory functions

Figure 20. 8935CF Web Page Links

presence, type, and status of Fiber Optic submodules, and module slot
serial number, and software/firmware version information (page 35),

type, and provides controls for setting the operating mode and
enabling or disabling input reporting for each of the four channels
(page 42),

along with links to the 8900NET SNMP, LED Reporting, and Frame
Alarm configuration web pages (page 44)

34 8935CF — Instruction Manual

Status Web Page

Use
this
link

The Status web page reports the status of the input signal for each of the
electrical video inputs (Channel 1-4), front and rear module information
and status, and information and status on the top and bottom fiber optic
submodule devices.

GeckoFlex Module Physical Structure

This graphic reports the status for each of the following items:

• BNC Input 1-4 – indicates the status of the video input to the module

from the coax BNCs. Refer to the Settings Web Page on page 42 for infor­mation on disabling the input status reporting.

• Fiber/BNC Out 1-4 – not monitored.

• Frame Bus – indicates the status of the communication bus to the
8900NET module.

• Rear Module – indicates status of the 8935CF-R module.

• Front Processing Module – indicates status of the 8935CF front module.

Configuration and Monitoring

• Fiber Module #1 Top – indicates the status of the SFP fiber optic module
installed in Position #1 on the top side of the module.

• Fiber Module #2 Bottom – indicates the status of the SFP fiber optic
module installed in Position #2 on the bottom (solder) side of the
module.

Color coding of the display and the Status LED indicate status. Refer to

Status Monitoring on page 50 for a complete explanation of the color coding.

Warning Messages

When the module detects an error, a warning message will appear between
the lines below the status graphic.

Other Status Reporting

A read-only section at the bottom of the Status web page gives information
about the module and fiber optic submodules, such as part number, serial
number, hardware revision and software and firmware versions, and asset
tag number (assigned on the Slot config web page).

8935CF — Instruction Manual 35

Configuration and Monitoring

Warning message area

Optic device signal status
and model number

The Status web page shown in Figure 21 show all inputs present and locked
and no errors of any type. Examples of common errors on the Status web
page are given in this section beginning with Figure 22 on page 37.

Figure 21. 8935CF Status Web Page – No Error Messages

36 8935CF — Instruction Manual

Configuration and Monitoring

Figure 22 illustrates the Status web page reporting that the top SMV_SFP

submodule is not installed.

Figure 22. 8935CF Status Web Page – No Top SFP Installed

8935CF — Instruction Manual 37

Configuration and Monitoring

Figure 23 illustrates the Status web page reporting that the wrong type of

SMV_SFP submodule is installed in the top position. The 8935CF will
accept only Dual Transmitter fiber optic submodules manufactured by
Grass Valley. The correct submodule types are listed under Module Features

on page 9.

Figure 23. 8935CF Status Web Page – Wrong SFP Type

38 8935CF — Instruction Manual

Configuration and Monitoring

Figure 24 illustrates the Status web page reporting that the SMV_SFP sub-

module installed in the top position is from the wrong manufacturer. The
8935CF will only accept Dual Transmitter fiber optic submodules manufac­tured by Grass Valley.

Figure 24. 8935CF Status Web Page – Wrong SFP Manufacturer

8935CF — Instruction Manual 39

Configuration and Monitoring

Figure 25 illustrates the Status web page reporting that the SMV_SFP sub-

module installed in the bottom position is not recognized as the correct
type or is reporting an internal error (bad).

Figure 25. 8935CF Status Web Page – Unknown SFP Installed

40 8935CF — Instruction Manual

Configuration and Monitoring

The input status of all four channels is reflected (in the Status LED on each
web page) and reported (to upper level devices such as the 8900NET
module and SNMP traps) remotely in a collective state. Tabl e 5 shows how
the collective input status of all four channels is generated and reported for
various channels states.

Table 5. Collective Remote Reporting Status of All Channels

Channel 1

Input Status

Not Monitored Not Monitored Not Monitored Not Monitored Not Monitored

Not Present N/A N/A N/A Not Present

N/A Not Present N/A N/A Not Present

N/A N/A Not Present N/A Not Present

N/A N/A N/A Not Present Not Present

Present Not Monitored Not Monitored Not Monitored Present

Not Monitored Present Not Monitored Not Monitored Present

Not Monitored Not Monitored Present Not Monitored Present

Not Monitored Not Monitored Not Monitored Present Present

Present Present Not Monitored Not Monitored Present

Present Not Monitored Present Not Monitored Present

Present Not Monitored Not Monitored Present Present

Not Monitored Present Present Not Monitored Present

Not Monitored Present Not Monitored Present Present

Not Monitored Not Monitored Present Present Present

Present Present Present Not Monitored Present

Present Present Not Monitored Present Present

Present Not Monitored Present Present Present

Not Monitored Present Present Present Present

Present Present Present Present Present

Channel 2

Input Status

Channel 3

input Status

Channel 4

Input Status

Collective

Input Status

8935CF — Instruction Manual 41

Configuration and Monitoring

Use
this
link

Settings Web Page

Use the Settings web page (Figure 26 on page 43) to monitor the input
signal, locked bit rate, and SFP device type, set the operating mode and
enable or disable input reporting for each of the four channels. The dif­ferent operating modes are described in detail in Operating Modes Overview

on page 23.

Select the channel to be monitored or configured with the
tons.

The following information is displayed for each channel:

• Input Signal – displays the input status of the selected channel as
Present, Not Present (only in Fixed 270M/Mute, Fixed 1.5G/Mute, or
Auto/Mute modes), or Not Monitored. Refer to Tab le 3 o n pa ge 30 for
a summary of input status reporting.

• Locked Rate – displays the currently detected line rate for the selected
channel.

• Optical Device #1 and #2 – reports the signal status and type of SFP
optical device installed in the top position #1 (Channels 1 and 2) or the
bottom position #2 (Channels 3 and 4) location.

Set the following controls for each channel:

• Enable Input Reporting – disable input reporting to the module and
upper level devices such as the 8900NET module. Disabling this
reporting will gray out the corresponding channel input arrow on the
Status web page.

• Operating Mode – select one of the following operating modes for each
channel:

Channel 1-4 but-

•Auto/Mute

• Fixed 270M/Mute

•Fixed 1.5G/Mute

•Auto/Bypass

•Fixed Bypass

• Apply Settings To: – apply the currently selected settings to another
channel by selecting the available
to all channels with the

• Reset Defaults For: – reset the default values for the currently selected
channel by selecting the
the

All Channels button.

The default values are Input Reporting Enabled and Auto/Mute mode.

42 8935CF — Instruction Manual

All button.

Current Channel button or for all channels with

Channel 1-4 buttons or apply settings

Configuration and Monitoring

Figure 26. Settings Web Page – Signal Present

The Settings web page shown in Figure 27 illustrates the reporting of an
input signal other than 270Mb/s or 1.5Gb/s in Auto/Bypass mode as being
Not Monitored.

Figure 27. Setting Web Page – Signal Not Monitored

8935CF — Instruction Manual 43

Configuration and Monitoring

Use
this
link

Slot Config Web Page

Use the Slot Config web page shown in Figure 28 to perform the following
functions on the module:

•Locate Module

• Slot Identification

•Slot Memory

• Frame Health Reporting

• LED Reports

• SNMP Trap Reports

Each of these functions is described in detail below.

Figure 28. Slot Config Web Page

44 8935CF — Instruction Manual

Configuration and Monitoring

Locate Module

Selecting Flash from the Locate Module pulldown flashes the yellow COMM
and CONF LEDs on the front of the module so it can be located in the
frame.

Slot Identification

You may identify the module by typing a specific name in the Name field.
The assigned name is stored on the 8900NET module and travels with the
8900NET module if it is moved to another frame. Select
factory default module name.

Default to enter the

An asset identification may be entered in the
on the module Status web page and in the NetConfig inventory report.

Asset Tag field. This will appear

Slot Memory

The slot configuration for each media module is automatically saved peri­odically (once an hour) to the 8900NET module in that frame. You may also
select the
ration for this slot. The configuration is saved on the 8900NET module. If
the 8900NET module is removed or powered down, the stored configura­tions are not saved.

When the
saved to this slot is saved as slot memory. When the current module is
removed and another module of the same type and software version is
installed, the configuration saved to the 8900NET module will be down­loaded to the new module. The box must be checked before the current
module with the saved configuration is removed.

Only the same module type, with the same version software should be
installed in this slot. Inserting a similar module with a different version
software can cause unexpected results.

If a different type of module is installed in this slot, a warning message will
state that the original module type has been replaced with another module
type. In this case, a
configuration from the previous module.

Learn Module Config button at any time to save the current configu-

Restore upon Install box has been checked, the current configuration

Clear button will appear allowing you to clear the stored

Note Uncheck the Restore Upon Install button before downloading new software.

Frame Health Reports Link

Select the Frame Health Reports link to open the 8900NET module Frame
Alarm Reporting web page. This web page allows configuration of the
alarms and warnings that are reported to the external Frame Health Alarm
connector on the rear of the GeckoFlex frame.

8935CF — Instruction Manual 45

Configuration and Monitoring

LED Reports Link

Select the LED Reports link to open the 8900NET LED Reporting web page.
Normally, every module in the frame will report to the 8900NET module
any Fault, Signal Loss, Reference Loss, or Config Error conditions. These
conditions will be reflected by the status LEDs on the 8900NET module.
Using this web page, any of these conditions can be disabled from being
reported to the 8900NET module for each individual module in the frame

SNMP Trap Reports Link

Select the SNMP Trap Reports link to open the 8900NET SNMP Reporting
web page. This link will only be present when SNMP Agent software has
been installed on the 8900NET module. This web page allows configura­tion of which alarms and warnings that are reported to the SNMP manage­ment software.

Refer to the 8900NET Instruction Manual for complete details on using the
8900NET web pages.

46 8935CF — Instruction Manual

Specifications

Specifications

Tab le 6 gives the overall specifications for the 8935CF module. Refer to
Table 7 on page 49 for Dual Transmitter SFP detailed specifications.

Table 6. 8935CF Specifications

Parameter Value

Serial Digital Coax Input

Connector BNC

Input impedance 75 ohm with return loss > 15 dB from 5 MHz to 540 MHz and > 10 dB

Input signal types (bypassed) 1 Mb/s to 540 Mb/s

Rise/fall time (20-80%) 400-800 ps

Signal level 800 mV p-p ±10%

Sample rates 32k to 96k

Signal level 0.8 to 1.2 V p-p

Input signal types (reclocked) SMPTE 259M-1997

Tolerance bit rate 270 Mb/s ± 10%

Tolerance bit rate 270 Mb/s ± 0.5%

Tolerance bit rate 1.485 Gb/s ± 0.5%

Equalization cable length
(for any of the above signal types)

Input jitter tolerance (reclock mode) ≥ 1 UI p-p, 10 Hz to 1k Hz

Input jitter tolerance (bypass mode) ≤ 1 UI p-p, 10 Hz to 1k Hz

Serial Digital Coax Output

Connector BNC

Output impedance 75 ohm with return loss > 15 dB from 5 MHz to 540 MHz and > 10 dB

Equalization cable length
(for any of the above signal types)

Signal level 800 mV p-p, ± 10% maximum

Rise/fall time (20-80%) < 270 ps for reclocked HD

Output polarity Non-inverted (all outputs)

Total jitter ≤ 0.2 UI p-p

for 540 MHz to 1.485 GHz

AES 3id-2001

GV Audio TDM Interface

Multi-channel audio digital interface (MADI)

DVB/ASI (ETSI TR 101 891V1.1.1)

SMPTE 292M-1998

Up to 300 meters of Belden 1694A cable for bit rates up to 270 Mb/s
Up to 100 metes of Belden 1694A cable for bit rates > 270 Mb/s and
< 1.485 Gb/s

≥ 0.2 UI p-p, 1k Hz to 15 MHz

≤ 0.2 UI p-p, 1k Hz to 15 MHz

for 540 MHz to 1.485 GHz

Up to 300 meters of Belden 1694A cable for bit rates up to 270 Mb/s
Up to 100 metes of Belden 1694A cable for bit rates > 270 Mb/s and
< 1.485 Gb/s

400-800 ps for SD and bypass mode

8935CF — Instruction Manual 47

Specifications

Table 6. 8935CF Specifications

Parameter Value

Serial Digital Fiber Outputs

Grass Valley SMV_SFP
Dual Transmitter Models Supported
(2 frequencies per CWDM device)
(see Table 7 on page 49 for submodule
specifications)

Connector 4 LC

Fiber type

Standard Other than LC connector, conforms to SMPTE 297M-2006

Polarity Non-inverting

Total jitter ≤ 0.2 UI p-p

Input to Output

Jitter transfer < 1 dB peaking in jitter transfer function form 10Hz to 10 MHz

Intrinsic jitter ≤ 0.1 UI p-p

Electrical Length

Reclocked at 270 Mb/s 10 ns

Reclocked at 1.5 Gb/s 8 ns

Bypass 7 ns

Mechanical

Supported frame type GeckoFlex

Environmental

Frame temperature range

Non-operating temperature

Power

Power consumption 7.5 Watts

SFP-1310-SDTX (1310nm)
SFP-CWDM-1 (1470nm & 1490 nm)
SFP-CWDM-2 (1510nm & 1530 nm)
SFP-CWDM-3 (1550nm & 1570 nm)
SFP-CWDM-4 (1590nm & 1610 nm)

Single Mode 9/125 µm step index (SI) fiber complying with ITU-T
recommendation G.652, TIA/EIA-492CAAA, IEC publication 60793-2
and GR-20-CORE requirements.

Maximum attenuation of 0.4 dB/km @1310nm

Maximum attenuation of 0.3 dB/km @1550nm

Refer to GeckoFlex Frame Installation ManualOperating humidity range

48 8935CF — Instruction Manual

Table 7. Transmitter SFP Specifications

SFP Model Number SFP-1310-SDTX SFP-CWDM-1 SFP-CWDM-2 SFP-CWDM-3 SFP-CWDM-4

Parameter

@HD (75% color bars)

Number of transmit channels

Connector type

Fiber support

Data rate

Wavelength 1

Wavelength 2

Power output

Maximum distance with SFP-DRX-1

Minimum distance with SFP-DRX-1

Maximum distance with SFP-DRX-1
receiver and two 8939CFA units

1

For attenuation requirements, refer to Attenuation Requirements on page 18.

(0.126 mW to 0.501 mW)

Value Value

22

LC LC

Single-mode fiber Single-mode fiber

143 Mb/s to 1.485 Mb/s 143 Mb/s to 1.485 Mb/s

1310nm 1470nm 1510nm 1550nm 1590nm

1310nm 1490nm 1530nm 1570nm 1610nm

-9 to -3 dBm

10 km 50 km

0 km 0 km

N/A 50 km

0 to + 3 dBm

(1 mW to 1 mW)

1

1

1

Specifications

8935CF — Instruction Manual 49

Software Updating

Software Updating

Software updating of the 8935CF modules is done using the NetConfig
Networking Application PC option. This application is available free of
charge from the Grass Valley web site.

The procedure for updating software with NetConfig is given in the
8935CF Release Notes when software updates become available. Check the
Grass Valley web site for update information. Refer to Contacting Grass

Valley on page 4 for more information.

Status Monitoring

This section provides a summary of status monitoring and reporting for a
GeckoFlex system. It also summarizes what status items are reported and
how to enable/disable reporting of each item. There are a number of ways
to monitor status of modules, power supplies, fans and other status items
depending on the method of monitoring being used.

LEDs

8900 Frame status will report the following items:

• Power supply health

• Status of fans in the frame front cover

• Temperature,

• Module health

• Frame bus status

Module health status will report the following items:

• Internal module state (and state of submodule or options enabled)
including configuration errors (warning), internal faults, and normal
operation (Pass).

• Signal input states including valid/present (pass), not present or
invalid (warning), not monitored, and not available (no signal inputs).

• Reference input states including locked/valid (pass), not
locked/invalid (warning), and not monitored.

LEDs on modules in the frame and on the front of the 8900TF/TFN and
GeckoFlex frames indicate status of the frame and the installed power sup­plies, fans in the front covers, and modules. (The 8900TX-V/A frames have
no LED indicators on the front cover.)

50 8935CF — Instruction Manual

Status Monitoring

When a red FAULT LED is lit on a frame front cover, the fault will also be
reported on the 8900NET or Frame Monitor module. The LEDs on the front
of these modules can then be read to determine the following fault condi­tions:

• Power Supply 1 and 2 health

• Fan rotation status

• Frame over-temperature condition

•Frame Bus fault (8900NET only)

• Module health bus

In general, LED colors used on the frame and modules indicate:

• Green = normal operation, (Pass) or signal present, module locked.

• Red – On continuously = fault condition, flashing = configuration error.

• Yellow – On continuously = active condition (configuration mode or

communication), flashing in sequence = module locator function.

Status LEDs for this module are described in LEDs on page 50. LEDs for the
8900NET module are described in the 8900NET Network Interface Instruction
Manual.

Frame Alarm

A Frame Alarm connection is available on pins 8 and 9 of the RS-232 con­nector on the rear of GeckoFlex frame (Frame Monitor or 8900NET
Network Interface module required). This will report any of the status
items enabled with the 8900NET or Frame Monitor module configuration
DIP switch. Connection and use of the Frame Alarm is covered in detail in
the 8900NET Network Interface Instruction Manual.

Web Browser Interface

When the 8900NET module is installed in the frame, a web browser GUI
can indicate frame and module status on the following web pages:

• Frame Status web page – reports overall frame and module status in

graphical and text formats.

• Module Status web page – shows specific input and reference signal

status to the module along with module versions.

• A Sta tus L ED i con o n eac h web pag e to rep ort comm unic ati on st atus for

the frame slot and acts as a link to the Status page where warnings and
faults are displayed (8900NET version 3.0 or later).

8935CF — Instruction Manual 51

Status Monitoring

SNMP Reporting

In general, graphics and text colors used indicate the following:

• Green = Pass – signal or reference present, no problems detected.

• Red = Fault – fault condition.

• Yellow = Warning – signal is absent, has errors, or is mis-configured.

• Gray = Not monitored (older 8900 module).

• White = Not present.

Status reporting for the frame is enabled or disabled with the configuration
DIP switches on the 8900NET module. Most module status reporting items
can be enabled or disabled on individual configuration web pages.

The GeckoFlex 8900 Series system uses the Simple Network Monitoring
Protocol (SNMP) internet standard for reporting status information to
remote monitoring stations. When SNMP Agent software is installed on the
8900NET module, enabled status reports are sent to an SNMP Manager
such as the Grass Valley’s NetCentral application.

There are both hardware and software report enable switches for each
report. Both must be enabled for the report to be sent. Software report
switches are set on the 8900NET Configuration page for the Frame, the
8900NET module, and each module slot. Refer to the 8900NET Network

Interface Instruction Manual for installation instructions.

52 8935CF — Instruction Manual

Service

8543_09

J11

+12V_SW

+5V +1.8V GND

GND+3.3V

Voltage Testpoints

Power-Up Diagnostic Failure

Troubleshooting

Service

The 8935CF modules make extensive use of surface-mount technology and
programmed parts to achieve compact size and adherence to demanding
technical specifications. Circuit boards should not be serviced in the field
unless directed otherwise by Customer Service.

If the module has not passed self-diagnostics, do not attempt to trouble­shoot. Return the unit to Grass Valley (see Module Repair on page 54).

Electronic Circuit Breaker

An electronic circuit breaker on the module works during a fault condition
or an overcurrent to cut off power to the module in place of a fuse.

If power has been cut off to module, remove the module and replace it in
the frame to reset. If the problem persists contact Grass Valley Customer
Service.

Voltage Test Points

Voltage test points for the module can be monitored from the locations
shown in Figure 29.

Figure 29. Voltage Test Points

8935CF — Instruction Manual 53

Functional Description

Module Repair

If the module is still not operating correctly, replace it with a known good
spare and return the faulty module to a designated Grass Valley repair
depot. Call your Grass Valley Customer Service representative for depot
locations.

Refer to Contacting Grass Valley on page 4 at the front of this document for
the Grass Valley Customer Service contact information.

Functional Description

An overall block diagram for the 8935CF module is shown in Figure 30.

Figure 30. 8935CF Block Diagram

54 8935CF — Instruction Manual

Index

Numerics

8900NET module

required software version

8935CF

block diagram
features 9

8935CF-R rear module

cabling
installation 12

18

54

A

attenutation requirements 18, 49
Auto/Bypass mode

29

LED
overview 24

Auto/Mute mode

29

LED
overview 23

B

blank rear cover 12
block diagram 54
BYP LED 29

C

cabling 18
circuit breaker 53
Clear button 45
COMM LED 27
CONFIG LED

during configuration
summary table 27

configuration

using local controls
using remote GUI 32

CWDM (Coarse Wavelength Division

Multiplexing)

configuration

20

31

31

32

device list 48
features 9
specifications 49

D

documentation online 4
duplex fiber cable

crossing
non-crossing 19

20

E

enable input reporting 42
enable SNMP 52

F

factory defaults

recalling with local controls

recalling with remote controls 42
FAQ database 4
FAULT LED

27

states

troubleshooting 51
fiber optic cleaning kit 10
Fixed 1.5G/Mute mode

LED

29

overview 24
Fixed 270M/Mute mode

29

LED

overview 24
Fixed Bypass mode

LED

29

overview 24
Frame Health Reporting 45
Frame Status web page 51
frequently asked questions 4
front module

installation

17

31

8935CF — Instruction Manual 55

Index

G

GeckoFlex frame

frame alarm
module placement 11

status reporting 50
graphical user interface (GUI) 34
Grass Valley web site 4

51

H

HD LED 29

I

input status summary 30
installation

8935CF-R rear module

front module 17

overview 11

SMV_SFP submodules 13, 49

12

O

online documentation 4
operating mode

configuring with remote controls
overview 23
setting with local controls 31

P

Paddle switch

location
paddle switch 31
PRES LED 29
PWR LED 27

25

R

report enable switches 52
Rotary switch

location
rotary switch 31

25

42

L

LED Reporting

enable/disable to 8900NET module

LEDs

bottom edge
Names and Meanings table 27, 29

top egde 26
Local/Remote jumper 25
Locate Module function 45

28

M

module health status 50
module repair 54
Module Status page 51

N

NetConfig

for updating software
Newton Control Panel 32

50

46

S

SD LED 29
service 53
Settings web page 42
SFP1 LED 27
SFP2 LED 27
Slot Config web page 44
slot memory 45
SMV_SFP submodules

installation
kit assembly 13
list of models used on 8935CF 10
SFP-DRX-1 Dual Receiver for 8935FC 21
specifications 49
types used on 8935CF 13
warning messages 37

SNMP reporting

enabling

overview 52
software download from web 4
software updating 50
SPF-DRX-1 Dual Receiver submodule

used on 8935FC module

13

46

21

56 8935CF — Instruction Manual

status monitoring 50
status reporting

collective reporting
front edge LEDs 25
remote status reporting 35

Status web page 35

41

T

troubleshooting 53

V

video inputs

19

coax

video outputs

19

coax

voltage test points 53

Index

W

warning messages

on Status web page

web browser interface

34

links
overview 32

web site

documentation
FAQ database 4
Grass Valley 4
software download 4

35

4

8935CF — Instruction Manual 57

Index

58 8935CF — Instruction Manual