Nevion 3GHD-CHO-2x3, 3GHD-CHO-2x4-PB, 3GHD-CHO-2x3-G, 3GHD-CHO-2x3-PB-G User Manual

Nevion HQ:

Nevion Europe, P.O. Box 1020, 3204 Sandefjord, Norway

Tel: [phone] – Fax: [phone] – www.nevion.com

3GHD-CHO-2x4/2x3

Multi Rate 3GHD-SDI Distribution Amplifier

with change-over

User manual

Rev. 2

3GHD-CHO-2x4/2x3 Rev. 2

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Nevion Support

Nevion Europe
P.O. Box 1020

3204 Sandefjord, Norway
Support phone 1: [phone]
Support phone 2: [phone]

Nevion USA

1600 Emerson Avenue

Oxnard, CA 93033, USA

Toll free North America: [phone]

Outside North America: [phone]

E-mail: [e-mail]

See http://www.nevion.com/support/ for service hours for customer support globally.

Revision history

Current revision of this document is the uppermost in the table below.

Rev.

Repl.

Date

Sign

Change description

2 1 2012-11-19

RB

Updated table 3 - Description of GPI interface:

- GPI “Main/Backup” renamed to “Main”, and
it senses main and not selected input.

- Changed to focus on outputs rather than
inputs for signal present.

Specifications for electrical outputs:

- Added note regarding output signal level
when using passive bypass versions.

Specifications for electrical inputs:

- Divided the cable equalization @2970Mbps
into 2 classes; with and without relays for
passive bypass.

Product overview:

- Added comment of 60 meters of cable
equalizing for 2970Mbps with the passive
bypass versions.

1 0 2011-09-15

MR/AJM

Changed description of VSTD to not be supported
on 3G.
Added Multicon Gyda status and configuration.

0 - 2011-01-31

MR

Initial revision

3GHD-CHO-2x4/2x3 Rev. 2

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Contents

Revision history .......................................................................................................... 2

1 Product overview ..................................................................................................... 4

2 Variants ................................................................................................................... 5

3 Specifications .......................................................................................................... 6

4 Status by LED’s ....................................................................................................... 7

5 Status and control from GPI .................................................................................... 8

6 Configuration by DIP................................................................................................ 9

6.1 Configuration Examples..................................................................................................10

7 Status from Multicon Gyda .................................................................................... 11

7.1 Label and picture ............................................................................................................11

7.2 Input ...............................................................................................................................11

7.3 GPI .................................................................................................................................11

7.4 Voltage ...........................................................................................................................11

7.5 Reclocker .......................................................................................................................12

7.6 Video analyzer ................................................................................................................12

7.7 Alarms ............................................................................................................................12

8 Configuration from Multicon Gyda ................................ ................................ ......... 13

8.1 Card label .......................................................................................................................13

8.2 Firmware upgrade ..........................................................................................................13

8.3 Electrical input ................................................................................................................13

8.4 Reclocker .......................................................................................................................13

8.5 Electrical output ..............................................................................................................13

8.6 Change over block ..........................................................................................................14

8.7 Video triggers .................................................................................................................15

8.8 Video analyzers ..............................................................................................................17

9 Alarms on Multicon Gyda ....................................................................................... 18

9.1 Electrical input ................................................................................................................18

9.2 Reclocker .......................................................................................................................18

9.3 Change over ...................................................................................................................18

9.4 GPI .................................................................................................................................18

9.5 Voltage ...........................................................................................................................18

10 Information from Multicon Gyda ........................................................................... 19

11 Backplane ................................ ................................ ................................ ............ 20

General environmental requirements for Nevion equipment..................................... 22

Product Warranty ...................................................................................................... 23

Appendix A Materials declaration and recycling information..................................... 24

A.1 Materials declaration ......................................................................................................24

A.2 Recycling information .....................................................................................................24

EC Declaration of Conformity ................................................................................... 25

3GHD-CHO-2x4/2x3 Rev. 2

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1 Product overview

The Flashlink 3GHD-CHO-2x4 is a multi bit-rate distribution amplifier module providing high
performance media distribution for various signal formats from 19.4Mbps up to 2970Mbps.
The unit can be configured to do cable equalizing and reclocking of SMPTE 424M, SMPTE
292M and SMPTE 259M signal formats.

The two inputs typically provide automatic cable equalizing for up to 70 meters (60 meters for
the passive bypass versions) of cable (Belden 1694A at 2970Mbps) with a total of 8/6
reclocked outputs. The 3GHD-CHO-2x4 will detect 3GHD, HD and SD rates and
automatically switch to the correct output slew-rate.

The reclockers support the bit-rates 270Mbps, 1483.5Mbps, 1485Mbps 2967Mbps and
2970Mbps. For other rates, the reclockers automatically switch to bypass mode, and the
3GHD-CHO-2x4 will work as a non-reclocking distribution amplifier with cable equalizers.

The 3GHD-CHO-2x4 also supports reclocking of DVB-ASI at 270Mbps, enabling all possible
rates including empty transport streams with only K28.5 padding packets. 4 of the outputs
are non-inverting and suitable for DVB-ASI.

The unit can be configured as a 1 x 8/6 distribution amplifier including any of the input ports.
The included intelligent change-over feature gives the ability to change input based on input

signal loss, loss of lock, EDH errors or a combination of the above.
There is also included a passive bypass function (with backplane board C2 and C4) from

both inputs to non-inverted outputs with less than 15 m loss of cable length (enables full
redundancy in case of mains failure).

The 3GHD-CHO-2x4 is designed for all distribution purposes in studio, duplication and
broadcast applications.

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2 Variants

The 3GHD-CHO-2x4 main board can be combined with 4 different backplane boards giving
functions as follows:

Product

Type of

backplane board

# Outputs

GPI I/O

Relay (passive

loop-through)

19425 3GHD-CHO-2x4

Version C1

8

No

No

19427 3GHD-CHO-2x4-PB

Version C2

8

No

Yes

19429 3GHD-CHO-2x3-G

Version C3

6

Yes

No

19431 3GHD-CHO-2x3-PB-G

Version C4

6

Yes

Yes

Table 1. Product overview.

Please observe that –G versions cannot be used with N-Box, Flashlink one module desktop
box, due to mechanical issues.

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3 Specifications

Electrical Outputs

Connectors

75 Ohm BNC

Output Return loss

- < -15dB, 5MHz -1.5GHz

- < -10dB, 1.5GHz - 3GHz

Output signal level

800mV +/- 10%
Note: for the passive bypass versions (using backplane C2 or
C4) the signal is attenuated with a cable equivalent of 15m.

Output signal rise / fall time
20% - 80%

- SD limit: [0.4ns – 1.5ns]; <0.5ns rise/fall var.

- HD limit: < 270ps, <100ps rise/fall var.

- 3G HD limit: <135ps, <50ps rise/fall var.

Amplitude overshoot

<10%

Polarity

- Output O1A, O1B, O2A and O2B: Non inverting electrical

- Remaining outputs: inverting electrical

Output timing jitter

- SD: <0.2 UI

- HD: <1 UI

- 3G HD: <1UI

Output alignment jitter

- SD: <0.15 UI

- HD: <0.15 UI

- 3G HD: <0.2UI

Electrical Inputs

Connectors

75 Ohm BNC

Input Cable Eq. @270Mbps

>300m w/Belden 1694A, with BER < 10E-12

Input Cable Eq. @1485Mbps

>100m w/Belden 1694A, with BER < 10E-12

Input Cable Eq. @2970Mbps

Ver. C1 and C3: >70m w/Belden 1694A, with BER < 10E-12
Ver. C2 and C4: >60m w/Belden 1694A, with BER < 10E-12

Input Return loss

- < -15dB, 5MHz -1.5GHz

- < -10dB, 1.5GHz - 3GHz

Jitter tolerance

- SD limit:

- 10Hz-1kHz: >1 UI

- 10kHz – 5MHz: >0.2 UI

- HD limit:

- 10Hz-100kHz: >1 UI

- 100kHz–10MHz: >0.2 UI

- 3G HD limit:

- 10Hz-100kHz: >2 UI

- 100kHz–10MHz: >0.3 UI

Features

Reclocking:

Automatic SD/ HD detection
Automatic output slew rate adjustment according to SMPTE
259M and SMPTE 292M/ SMPTE 424M

Supported clock rates:

270, 1483.5, 1485, 2967, 2970Mbps

Input equalizers:

Eq. bypass for non-video formats or low bit rates

Supported standards

SMPTE:

SMPTE 424M, SMPTE 292M, SMPTE 259M, SMPTE 305M,
SMPTE 310M

DVB-ASI:

EN50083-9 (on non-inverting outputs)

General

DC power consumption:

+5V / < 4.5W

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4 Status by LED’s

The status of the module can be easily monitored visually by the LEDs at the front of the
module. The LEDs are visible through the front panel as shown below.

Figure 1 - Panel indicator overview (Text not printed on the front panel)

The functions of the different LEDs are described in table below.

Diode \ state

Red LED

Yellow LED

Green LED

No light

Status

Module is faulty

Module is OK
Module has power

Module has
no power

LOL & LOS 1
(Input 1)

No Reclocker
Lock & Loss Of
Signal

No Reclocker lock
& Signal present

Reclocker in lock &
Signal present

LOL & LOS 2
(Input 2)

No Reclocker
Lock & Loss Of
Signal

No Reclocker lock
& Signal present

Reclocker in lock &
Signal present
Main/Bypass

No stable input

Bypass selected

Main selected

Table 2. LED status description

Status

LOL & LOS 1

LOL & LOS 2

Main/Bypass

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5 Status and control from GPI

On the backplane there is a GPI port. This connector can be used for monitoring the modules
status. Also the change over function can be controlled through this connector.

GPI name

(setup1/

setup2)

Function

(setup1/ setup2)

Pin #

Mode

Direction

Electrical

Maximums

for GPI

outputs:

Max current:
100mA

Max voltage:
30V

Max power:
200mW

Status

General error status for the
module

Pin 1

Inverted Open
Collector
(open is alarm)

Output

Main

Loss of signal or lock at
main input

Pin 2

Inverted Open
Collector
(open is alarm)

Output

Signal
present 1

Good signal routed to
output 1

Pin 3

Inverted Open
Collector
(open is alarm)

Output

Signal
present 2

Good signal routed to
output 2

Pin 4

Inverted Open
Collector
(open is alarm)

Output
Reset

Reset selected input to
main

Pin 5

TTL, 0V =
active level

Input

Set

Set selected input to
standby

Pin 6

TTL, 0V =
active level

Input
Not used

Pin 7

Ground

0 volt pin

Pin 8

0V.

Table 3 - Description of GPI interface

Figure 2 - GPI interface