Nevion FRS-HD-CHO User Manual

FRS-HD-CHO / FRS-HD-CHO-ASI /

ASI-CHO-2x1-PB

HD/SD-SDI 2x1 Change-Over

with Frame Synchronizer

and/or

ASI 2x1 Change-Over

User manual

Rev. 9

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

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

Nevion HQ:

FRS-HD-CHO Rev. 9

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.

Rev.

Repl.

Date

Sign

Change description

9 8 2012-08-10

TB

Corrected DIP switch description for ASI-CHO-2x1.
Added min/max audio delay.

8 7 2012-05-04

TB

Corrected table 2, Connections. Added description of
the GPIO mode selector under GPI alarms.

7 6 2012-02-22

TB

Added the ASI-only variant, ASI-CHO-2x1-PB.
Updated several screen-shots to current look

(Multicon 3.6.0)

6 5 2011-08-15

TB

Added clarification about –ASI upgrade and HW
versions.

5 4 2011-05-19

TB

Added description for the ASI variant. Some
changes to DIPs and the list of commands.
Added Declaration of Conformity.

4 3 2010-02-24

TB

Added APVF and silence trigger (ch.5.2), updated
block diagram (ch.1.1), replaced „kill‟ with „mute‟ as
audio fallback (ch.5.13), replaced misleading figures
on sync (ch.5.4.1).

3 2 2009-05-12

RS

Corrected cable equalization spec on inputs

2 1 2009-05-06

SHH

Added a requirement of termination of unused SDI­inputs/outputs in chapter 3.3.

1 0 2009-03-03

SHH

Updated document with Label generator and
corrected an error in the mtx 0 description

0 B 2008-12-15

NBS

First release of product.

B A 2008-12-04

SHH

Re-written and new Gyda features included.

A - 2008-10-17

SHH

Initial release.

Nevion Support

Revision history

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

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FRS-HD-CHO Rev. 9

Contents

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

1.1 Product description .......................................................................................................... 4

2 Specifications .......................................................................................................... 6

3 Configuration ........................................................................................................... 8

3.1 Manual mode ................................................................................................................... 8

3.2 Gyda mode .....................................................................................................................10

3.3 Connections ...................................................................................................................12

3.4 Sync input ......................................................................................................................12

4 Operation ............................................................................................................... 13

4.1 Front panel LED indicators .............................................................................................13

4.2 GPI alarms ..................................................................................................................... 13

5 Functional description ............................................................................................ 15

5.1 Selection of input signal type (FRS-HD-CHO-ASI only) ..................................................15

5.2 SDI data path .................................................................................................................15

5.3 Video input selection ......................................................................................................15

5.4 De-glitcher ......................................................................................................................18

5.5 Frame synchronizer ........................................................................................................19

5.6 Video generator ..............................................................................................................23

5.7 Label generator ..............................................................................................................24

5.8 Video processing block ...................................................................................................24

5.9 EDH processing block ....................................................................................................25

5.10 Video output selection ..................................................................................................25

5.11 Audio blocks overview ..................................................................................................25

5.12 Audio de-embedder ......................................................................................................25

5.13 Audio delay ...................................................................................................................25

5.14 Audio cross point matrix ...............................................................................................26

5.15 Audio generator ............................................................................................................27

5.16 Audio processing block .................................................................................................27

5.17 Audio embedder ...........................................................................................................28

6 RS422 commands ................................................................................................. 29

6.1 FLP4.0 required commands ...........................................................................................29

6.2 Normal control blocks .....................................................................................................30

6.3 Commands intended for debug/lab use only ...................................................................35

General environmental requirements for Nevion equipment..................................... 36

Product Warranty ...................................................................................................... 37

Appendix A Materials declaration and recycling information..................................... 38

EC Declaration of Conformity ................................................................................... 39

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FRS-HD-CHO Rev. 9

1 Product overview

Figure 1: Simplified block diagram of the FRS-HD-CHO card

1.1 Product description

The base version of the Flashlink FRS-HD-CHO is a 2x1 HD/SD change-over module with a
frame synchronizer that can lock an HD-SDI or SD-SDI input to a black & burst or tri-level
reference signal. A de-glitcher ensures an always error-free output.

The change-over functionality covers numerous switching criteria that analyses video and
audio integrity and content. The switching criteria are placed into several logical groups, each
of which can have their own timing.

The FRS-HD-CHO has an extensive audio functionality, including audio cross point matrix,
channel swapping, relative audio delay, and audio gain. The module is also well suited for
Dolby-E.

An extension - and even a separate version - exists that will also handle change-over
switching on ASI inputs, but then without the frame synchronizer, de-glitcher, and audio
functionality.

The user parameters of the card can either be changed by switches on the board, or by the
Multicon Gyda system controller.

1.1.1 Product versions

This product comes in three versions: The base model FRS-HD-CHO for HD/SD-SDI, the
FRS-HD-CHO-ASI with a selectable SDI or ASI mode, and an ASI-only version called ASI­CHO-2x1-PB.

The ASI-CHO-2x1-PB is not designed to be upgradable to an FRS-HD-CHO or an FRS-HD­CHO-ASI. The user interface for ASI-only is however much reduced compared to the SDI
capable versions with frame synchronizer and audio embedding/de-embedding, making the
ASI-CHO-2x1-PB very easy to understand, set up, and use.

Some FRS-HD-CHO modules can be upgraded to FRS-HD-CHO-ASI with a software key
(for a nominal fee). These modules can be recognized by the way they respond to a „?‟
command on the serial communication bus, and the way they present themselves in the
Multicon Gyda configuration page. If the reply to the „?‟ command contains a line that says

“Serial rev 1728201000000001” (the actual 16-digit number will be different) and a line that
says “HW rev 1.1”, or there are two lines at the very bottom of the Multicon configuration

page that looks like below, the module can be upgraded to the -ASI version with a software
key:

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FRS-HD-CHO Rev. 9

If one (or both) of these two lines is not present, or the HW version is reported as 1.0, or the
serial number reported is “XXXXXXXXXXXXXXXX” (literally sixteen X characters), the
module cannot be field upgraded from the FRS-HD-CHO to the FRS-HD-CHO-ASI version.
Of course, the module can still be upgraded with the latest firmware and continue to work as
an FRS-HD-CHO.

1.1.2 Key features

 Passive bypass from both inputs to non-inverted outputs with less than 25m loss of cable

length (enables full redundancy, see app. note in appendix)

 HD/SD video support, including DVB-ASI in through mode
 Separate ASI mode available (as an upgrade from the „normal‟ FRS-HD-CHO)
 Separate ASI-only version available with a much simplified user interface
 De-glitching of input video signal (always seamless output)
 Intelligent change-over functionality with switching criteria:

 Video integrity check
 Audio integrity check
 Video freeze detect (full frame or active area)
 Video black detect (with adjustable black threshold)
 Time code freeze
 Audio silence detect (with adjustable silence threshold)

 Latched switching

 Ripple rejection latching with adjustable hold times
 Switching between inputs on switching line
 GPI inputs for external control of switch
 Individual detection timings for video signal integrity, audio signal integrity, video

content and audio content.

 HD/SD frame sync/delay (8 frames max)
 luma/chroma gain and level adjustment
 Audio delay enabling Dolby-E processing delay correction
 Audio router for embedded audio
 Embedded audio gain adjustment
 Audio fade out/fade in at switching or frame-wrap
 SDI Label inserter
 EDH processing

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FRS-HD-CHO Rev. 9

Number of inputs

2

Connectors

75 Ohm BNC

Equalization

Automatic;
>300m @270Mbps w/Belden 8281, with BER < 10E-12
>130m @1485Mbps w/Belden 1694A, with BER < 10E-12

Input Return loss
Active input

>15dB, 5MHz -1.485GHz

Input Return loss
passive bypass

>15dB, 5MHz -742.5MHz
>10dB, 742.5MHz - 1.485GHz

Jitter tolerance

SD limit:
10Hz-1kHz: >1 UI
10kHz – 5MHz: >0.2 UI

HD limit:
10Hz-100kHz: >1 UI
100kHz–10MHz: >0.2 UI

Connector

75 Ohm BNC

Format

Black & Burst, Tri-level

Input Return loss

>35dB @ < 10MHz,
30dB @ < 30MHz

Number of outputs

4

Connectors

75 Ohm BNC

Return Loss O1, O2
Active output

>15dB, 5MHz -1.485GHz

Output Return loss O1, O2
Passive bypass

>15dB, 5MHz -742.5MHz
>10dB, 742.5MHz - 1.485GHz

Return loss !O1, !O2

>15dB, 5MHz -742.5MHz
>10dB, 742.5MHz - 1.485GHz

Output signal level

800mV +/- 10%

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.

Amplitude overshoot

<10%

Output timing jitter

SD: <0.2 UI
HD: <1 UI

Output alignment jitter

SD: <0.15 UI
HD: <0.2 UI

2 Specifications

Electrical SDI input

Electrical Sync input

Electrical SDI outputs

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FRS-HD-CHO Rev. 9

SD, 270 Mbps

SMPTE 259M, SMPTE 272M-AC

HD, 1485 Mbps

SMPTE 292M, SMPTE 274M, SMPTE 291M, SMPTE 296M,
SMPTE 299M

DVB-ASI1

50083-9,
error detection according to ETR290 1.1 and 1.2

Video switch point definition
and sync

SMPTE RP168 (tri-level), SMPTE 170m, ITU-R. BT.470
EDH

Compliant to SMPTE-RP165

Video Payload Identification

SMPTE 352M-2002

Power consumption

3.5W @ 5V

1.2W @ 15V

1

Supported standards

Other

The ASI support can be purchased as an optional upgrade.

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FRS-HD-CHO Rev. 9

3 Configuration

The board can be configured both manually and through the system controller Multicon
Gyda. However, only a few of the configurable parameters are available when operating in
manual mode.

3.1 Manual mode

To reach manual mode DIP16, labeled OVR, on the board must be switched on (to the right)
and the board must be re-booted. This takes the board out of Multicon Gyda control (if it was
previously set to off) and a number of the module‟s features will be controlled directly by the
other DIP switches, the rotary switch, and the two pushbuttons. Settings not controlled by
any of these switches are kept unchanged from previous session (factory setup or Gyda
setup).

The Manual Mode configuration controls are all found on the front side of the board. There
are two sets of DIP switches, one rotary switch and two push buttons. The slide switch on the
lower right is used to select sync source for both modes of operation, see 3.1.2 below.

Figure 2: The figure shows a top view component printout of the board. LEDs, push-buttons,

the rotary switch and the 2 sets of DIP-switches are colorized.

3.1.1 Rotary switch and push buttons

The rotary switch, labeled DLY, adjusts the phase delay by -5 to +4 video lines. It is only
functional when a sync signal, black & burst or tri-level, is present at the sync input. The
rotary switch is accessible from the front of the rack.

The push buttons, labeled INC and DEC, are used to fine adjust the phase delay by samples.
It can adjust within +/- ½ video line for the video standard seen by the module.

3.1.2 Slide switch

The slide switch on the lower right side of the card selects between backplane sync input
(BP) and Flashlink rack distributed sync (RACK). The rack distributed sync is a future feature
upgrade of the Flashlink frame, and at present the switch should always be set to its lower
position (to BP).

3.1.3 Factory reset function

The factory reset function restores the module to its default settings. These settings are just
a start condition for the board, and changes done by the user will still take effect and be
stored.

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FRS-HD-CHO Rev. 9

Switch #

Function name

Function DIPs

Comment

1

ASI/SDI input

mode

(FRS-HD-CHO-ASI

only)

Off: input is SDI
On: input is ASI

(For valid ASI output, DIP12 and/or

DIP13 must also be set to the

„Through position‟)

FRS-HD-CHO-ASI only.
Note: Firmware older than ver. 1.10

use this DIP for a latch on/off input
setting.

2

CHO priority

Off = In1
On = In2

3

---

Reserved

Note: Firmware older than ver. 1.10
use this DIP for selection between
Loss Of Signal and Loss Of Lock.

4-5

Lock & Hold time

DIP[5 6] = [Off Off] => Minimum
DIP[5 6] = [Off On] => 1s
DIP[5 6] = [On Off] => 4s
DIP[5 6] = [On On] => Reserved

Only valid if latch is on

6

Audio gen

Off = 1kHz Sine

On = Black sound

7

Emb. enable

Off: No audio embedded

On: Audio embedded

When off, the audio is left un­touched on the SDI stream. When
on, the audio configured to be em­bedded is embedded into the SDI.

8

GPIO setup

Off: SDI-CHO-2x1 mode

On: FRS-HD-SDI mode

See the GPI input output
description below.

9 - 11

Frame delay

DIP[9 10 11] = [Off Off Off] => 0 frms
DIP[9 10 11] = [Off Off On] => 1 frms
DIP[9 10 11] = [Off On Off] => 2 frms
DIP[9 10 11] = [Off On On] => 3 frms
DIP[9 10 11] = [On Off Off] => 4 frms
DIP[9 10 11] = [On Off On] => 5 frms
DIP[9 10 11] = [On On Off] => 6 frms
DIP[9 10 11] = [On On On] => 7 frms

With a sync-input present, this sets
the minimum frames delay.

Without a sync-input present this
sets the no. of frames delay relative
to the input.

12

SDI OUT 1

Off: through mode

On: processed mode

In through mode the video only
goes through a re-clocker.

13

SDI OUT 2

Off: through mode

On: processed mode

In through mode the video only
goes through a re-clocker.

14

Video Generator

Off: Color bar

On: Black field

This is the video generator signal
that is shown when video is
detected lost according to the
fallback rule set in GYDA.

15

RESET

Off: Use values preset by GYDA.

On: RESET to factory defaults

To reset, both DIP 15 and DIP16
must be set on before powering on.
DIP 15 and 16 is read at power up.
The reset is not done until DIP 15 is
set back to off and re-powered.

The factory reset is initiated by setting DIPs 15 and 16 to the „On‟ position and booting the
module. All inputs signals should be removed. The status LED will stay permanently orange,
and the module will not complete its start-up. DIP 15 should then be returned to the „Off‟
position, while DIP 16 should be set to the desired mode of operation before the module is
booted again. This starts the actual internal reset process, and the module should now be left
powered for at least 10 seconds or the complete set of default setting may not be stored
properly. If necessary, the reset operation can be performed multiple times.

3.1.4 DIP switch functions

The two sets of DIP switches are labeled with a number running from 1 to 15. The 16th DIP is
labeled OVR.

Note that the left DIP switch of the horizontal DIP package is number 1. The top
DIP switch of the vertical DIP package is number 9.

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FRS-HD-CHO Rev. 9

Switch #

Function name

Function DIPs

Comment

16

OVR

Off: GYDA mode

On: Manual mode

This DIP is only read at power up.
OVR is short term for GYDA

override

Table 1: DIP SWITCH FUNCTIONS

For the ASI-CHO-2x1-PB, only DIPs number 2, 4, 5, and 8 (and 15+16) will have
any effect. The rest will be ignored and can be set to any position.

3.2 Gyda mode

All functions of the card can be controlled by the Multicon Gyda control system. In Multicon
Gyda the module has an information page and a configuration page.

3.2.1 Information page

The information page for ASI-CHO-2x1-PB is a subset of the information page for FRS-HD­CHO, which in turn is a subset of the information page for FRS-HD-CHO-ASI. While the
FRS-HD-CHO and FRS-HD-CHO-ASI only differ in that the latter has an extra line for “Input
signal type”, the ASI-CHO-2x1-PB information page is quite reduced, because the frame
synchronizer and audio embedder/d-embedder functionality quite simply isn‟t included. The
difference between Figure 3 and Figure 4 should make this clear. The following paragraphs
will describe the information page for FRS-HD-CHO(-ASI), but as far the mentioned items
are also present in the ASI-CHO-2x1-PB information page, the description will apply for that
product version as well.

The information page shows a dynamic block-diagram of the board and some additional
information in textual form. The block diagram updates with the boards status, showing input
signal selected, signals missing (by red crosses over signal lines), and routing through
switches. It also shows the audio matrix selections that have been made on the configuration
page.

Note that if embedded audio is missing from a group, the user will still be allowed
to select those inputs in the matrix, but the output will go to a fallback position.
Missing audio channels will be shown in the block diagram with a red cross over
the matrix input line.

The text on the information page gives information about functionality not displayed on the
dynamic block diagram.

The video delay represents the actual delay between input and output video.
If the ASI option has been purchased, the name of the module will have „-ASI‟ appended. In

addition, a line „Input signal type‟ followed by „SDI‟ or „ASI‟ will appear as a reminder of the

selected mode, ASI or SDI.

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FRS-HD-CHO Rev. 9

Figure 3: Gyda information page for FRS-HD-CHO-ASI

Figure 4: Gyda information page for ASI-CHO-2x1-PB

3.2.2 Configuration page

The different configuration possibilities are explained in detail in Chapter 5, under the
corresponding functions.

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FRS-HD-CHO Rev. 9

Function

Label

Connector type

HD/SD-SDI or ASI input 1

IN1

BNC

HD/SD-SDI or ASI input 2

IN2

BNC

HD/SD-SDI or ASI output 1

O1

BNC

HD/SD-SDI output 1, inverted (ASI is a

polarized signal, i.e. the inverted signal is not
valid ASI unless inverted a second time)

___

O1

BNC
HD/SD-SDI or ASI output 2

O2

BNC

HD/SD-SDI output 2, inverted (ASI is a

polarized signal, i.e. the inverted signal is not
valid ASI unless inverted a second time)

___

O2

BNC
Black & Burst/ tri-level input

SYNC

BNC

Black & Burst/ tri-level input

SYNC

BNC

GPI in

GPI

TP45, pin 5 & 6

GPI out

GPI

TP45 pin 1, 2, 3, 4, 7 (pin 8 = GND)

3.3 Connections

Figure 5: FRS-HD-CHO-C1 backplane

right: connection side left: component side

The backplane for the FRS-HD-CHO is labeled FRS-HD-CHO-C1. The table below shows
the connectors and their functions.

Table 2: Connector functions

Unused SDI/ASI-inputs/outputs must be terminated with 75 Ohm.

3.4 Sync input

The two sync inputs on the backplane are internally connected. It is possible to use one as
input and the other as a looped output. The backplane also features a switchable
termination. By setting the “red” switch in the upper right of Figure 5 to the „On‟ position the
sync input will be terminated to 75 Ohms.

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