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

4 8935CF — Instruction Manual
Contacting Grass Valley
Copyright © Grass Valley. All rights reserved.
This product may be covered by one or more U.S. and foreign patents.
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.
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found by searching our Frequently Asked Questions (FAQ) database.
Software Downloads — Download software updates, drivers, and patches.
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8935CF — Instruction Manual 5
Contents
Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
8935CF 4 Channel Electrical to Fiber Converter Module. . . . . . . . . . . . . . . 9
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

6 8935CF — Instruction Manual
Contents
Power-Up Diagnostic Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Electronic Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Voltage Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Module Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

8935CF — Instruction Manual 7
Preface
About This Manual
This manual describes the features of the 8935CF module and the corre-
sponding 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 informa-
tion.

8 8935CF — Instruction Manual
Preface

8935CF — Instruction Manual 9
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 iden-
tical 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.

10 8935CF — Instruction Manual
Introduction
The 8935CF can be populated with any two of the following SMV_SFP
(Strap Mount Video Small Form-factor Pluggable) dual transmitter sub-
modules, 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 con-
nectorized fiber end faces. This helps ensure optimum performance of the
fiber optic interface. Industry standard fiber optic cleaning kits can be pur-
chased on the web and in electronics stores.

8935CF — Instruction Manual 11
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 sub-
modules, 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

12 8935CF — Instruction Manual
Installation
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
Use needlenose pliers
to pull out blank after
removing retainers.

8935CF — Instruction Manual 13
Installation
SMV_SFP Submodule Installation
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 cus-
tomer 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 spe-
cific submodule installation location and cabling information.
The submodule kit includes one SMV_SFP submodule with dust cover pro-
tector 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
LC Fiber Jumper Assembly
Dust Covers
SMV_SFP Submodule
Duplex end of LC jumper
Simplex end
of LC jumper

14 8935CF — Instruction Manual
Installation
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 loca-
tions of the hardware components, connectors, and plastic cable guides.
Figure 5. SFP Submodule Installation – Components
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
SCA-2 connectorScrewsStraps
Plastic cable guides Extended LC adapter
LC Fiber jumper assembly
8543-12
Arrow indicators

8935CF — Instruction Manual 15
Installation
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.
Duplex end of
LC jumper
Simplex end of LC jumper

16 8935CF — Instruction Manual
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 sub-
module will output Channel 3 and Channel 4 and will install in SCA-2 con-
nector, 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

8935CF — Instruction Manual 17
Installation
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.
8. Replace the front cover for configuring the module using remote
controls.
Figure 9. Front Module Installation
8543_02
Slide top and bottom card carriers on module
over top and bottom guides on right of slot.
Module installed
Locking Pin
Card Carriers
Card Carriers
Front Module Side View

18 8935CF — Instruction Manual
Installation
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 over-
driving the receiver causing bit errors to occur on the fiber link. Use the fol-
lowing 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 config-
uration (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.
8543_03
8935CF-R
OUTOUT
IN OUT
CH1
IN
1
23
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

8935CF — Instruction Manual 19
Installation
Electrical Inputs
Connect a signal conforming to the to the specifications given in Table 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.
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

20 8935CF — Instruction Manual
Installation
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 demulti-
plex 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 stan-
dard 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
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