Nevion SDI-TD-MUX-4 User Manual
SDI-TD-MUX-4 / SDI-TD-DMUX-4
4 x SD-SDI / DVB-ASI over HD-SDI
Time Division Multiplexer / De-Multiplexer
User manual
Rev. N
Nevion
Nordre Kullerød 1
3241 Sandefjord
Norway
Tel: +47 33 48 99 99
nevion.com
SDI-TD-MUX-4 / SDI-TD-DMUX-4 Rev. N
Nevion Europe
P.O. Box 1020
3204 Sandefjord, Norway
Support phone 1: +47 33 48 99 97
Support phone 2: +47 90 60 99 99
Nevion USA
1600 Emerson Avenue
Oxnard, CA 93033, USA
Toll free North America: (866) 515-0811
Outside North America: +1 (805) 247-8560
E-mail: support@nevion.com
See http://www.nevion.com/support/ for service hours for customer support globally.
Rev.
Repl.
Date
Sign
Change description
N
12
2015-05-14
MB
Cover page update; DoC removed; no other
changes to content
12
11
2012-04-04
TB
Clarified the ASI data rate in the specification lists
(updated chapters 1, 2 and 3).
11
10
2011-04-15
TB
Corrected error in the description of the DIPs for
fallback to internal video generator.
10 - 2011-01-31
TB
Based on version 5.4 of MUX and DMUX codes and
combined from earlier FLP3 versions of the manual.
Nevion Support
Revision history
Current revision of this document is the uppermost in the table below.
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SDI-TD-MUX-4 / SDI-TD-DMUX-4 Rev. N
Contents
1 The SDI-TD-MUX-4 and SDI-TD-DMUX-4 at a glance ............................................ 4
1.1 Product versions .............................................................................................................. 4
2 Multiplexer specifications ......................................................................................... 5
3 De-multiplexer specifications ................................................................................... 6
4 Description ............................................................................................................... 7
5 Configuration ........................................................................................................... 9
5.1 Multicon GYDA mode ...................................................................................................... 9
5.2 MUX DIP switches ..........................................................................................................16
5.3 DMUX DIP switches .......................................................................................................17
6 Connections ........................................................................................................... 18
6.1 Power connections .........................................................................................................18
6.2 Backplane ......................................................................................................................18
6.3 The main board ..............................................................................................................19
7 Operation ................................................................................................ ............... 21
7.1 Front panel LED indicators .............................................................................................21
7.2 GPI alarms .....................................................................................................................22
7.3 RS422 commands ..........................................................................................................22
8 Laser safety precautions ........................................................................................ 27
General environmental requirements for Nevion equipment..................................... 28
Product Warranty ...................................................................................................... 29
Appendix A Materials declaration and recycling information..................................... 30
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SDI-TD-MUX-4 / SDI-TD-DMUX-4 Rev. N
SDI-TD-MUX-4
4xSD-SDI/DVB-ASI multiplexer with electrical HD-SDI output.
SDI-TD-MUX-4-T
4xSD-SDI/DVB-ASI multiplexer with simultaneous electrical and
optical HD-SDI outputs.1
SDI-TD-DMUX-4
HD-SDI to 4xSD-SDI/DVB-ASI de-multiplexer with electrical input.
SDI-TD-DMUX-4-R
HD-SDI to 4xSD-SDI/DVB-ASI de-multiplexer with both electrical
and high sensitivity 9/125µm single mode optical input.
1
1 The SDI-TD-MUX-4 and SDI-TD-DMUX-4 at a glance
The SDI-TD-MUX-4 is a Flashlink time-division multiplexer (TDM) that allows any
combination of four SD-SDI or DVB-ASI inputs to be transported over a single HD-SDI link
according to the SMPTE 346M-2000 standard.
The SDI-TD-DMUX-4 is a Flashlink time division de-multiplexer that recovers the four SDSDI or DVB-ASI input signals from the SMPTE 346M-2000 compliant transport signal.
The key features of the combination SDI-TD-MUX-4 / SDI-TD-DMUX-4 include:
Accepts any synchronous or asynchronous SD-SDI 270 Mbps input format as well as
270 Mbps DVB-ASI.
Automatic input format detection for each channel.
Mix of input formats allowed and correct format recovered at the de-multiplexer side.
Built-in routing switcher at both ends.
Separate stream clock reference data for each channel is transferred for remote clock
regeneration.
The four streams embedded in the HD-SDI are completely independent, no
contamination of remaining streams when one or more inputs are lost.
High performance optics for short and long haul applications available, including
CWDM laser option.
Optical and electrical 1.485 Gbps HD output TDM available simultaneously.
Change-over functionality between de-multiplexer electrical and optical inputs.
The transport signal is compliant with the SMPTE-346M-2000 standard, allowing use
of a standard HD infrastructure for transport and switching of the multiplexed signal.
EDH handling for the SD-SDI signals.
Multicon interface allows remote control, status monitoring, error reporting and SNMP
support.
1.1 Product versions
Several wavelength/power options exist. From a control perspective all these versions are identical,
but the laser control block reports its parameters to the system controller.
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SDI-TD-MUX-4 / SDI-TD-DMUX-4 Rev. N
Number of inputs
4 independent SD-SDI, DVB-ASI or SDTI
Data rates
270 Mbps, any DVB-ASI payload data rate2
Equalization
Automatic up to 300m
Impedance
75 ohm
Return loss
>15dB @ 270MHz
Connector
BNC
Output signal
HD-SDI with TDM payload according to SMPTE 346M-2000
Data rate
1485 Mbps
Impedance
75 ohm
Return loss
>15dB @ 1485MHz
Jitter (UI = Unit Interval)
Max. 0.2UI
Peak to peak signal level
0.8V ±0.1V
Signal polarity
Non-inverting
Connector
BNC
Output signal
HD-SDI, TDM payload according to SMPTE 346M-2000
Transmission circuit fiber
Single Mode
Light source
F-P / DFB laser
Optical power
-7.5dBM @ 1310nm (F-P laser), 0 dBm (DFB laser)
Optical center wavelength
1310nm, 1550nm, CWDM according to ITU-T G.694.2
Max. wavelength drift
±20nm (F-P lasers), ±6nm (DFB lasers)
Jitter (UI = Unit Interval)
Max. 0.2UI @ 1485Mbps
Connector return loss
better than 40dB w/ SM fiber
Connector
SC/UPC
Temperature range
0 to +45 °C
Power consumption
+5V/3.5 W, +15V/1.0W
(4.5W when running on a single +5V supply)
Control
RS-422, Multicon GYDA enabled, SNMP
Electrical and optical delay
Less than 100 us (combined through MUX and DEMUX)
In addition comes 5 us/km of fiber signal propagation time
SMPTE
SMPTE 346M-2000, SMPTE 292M, SMPTE 259M,
SMPTE 305.2M, SMPTE 297M, SMPTE RP165
DVB-ASI
EN50083-9
2
2 Multiplexer specifications
Electrical input
Electrical output (standard)
Optical output (optional)
Electrical
Latency
Supported standards for electrical and optical ports
Early versions of the MUX/DMUX modules were limited to DVB-ASI payload data rates ≤ 35 Mbps.
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SDI-TD-MUX-4 / SDI-TD-DMUX-4 Rev. N
Input signal
HD-SDI, TDM payload according to SMPTE 346M-2000
Sensitivity
Better than -25dBm
Max multi mode fiber length
300m (version SDI-TD-DMUX-4-RM)
Detector overload threshold
Min. -6dBm
Detector damage threshold
> +1dBm
Optical wavelength
1200 - 1620nm
Transmission circuit fiber
Single Mode 9/125µm or multimode 50/125µm
Connector return loss
better than 40dB w/ SM fiber
Connector
SC/UPC
Output signal
HD-SDI with TDM payload according to SMPTE 346M2000
Data rate
1485 Mbps
Equalization
Automatic up to 100m
Impedance
75 ohm
Return loss
>15dB @ 270MHz
Signal level
Nom. 800mV
Connector
BNC
Number of outputs
4 independent SD-SDI, DVB-ASI or SDTI
Data rates
270 Mbps (see footnote on the previous page)
Impedance
75 ohm
Return loss
>15dB @ 270MHz
Jitter (UI = Unit Interval)
Max. 0.2UI
Peak to peak signal level
0.8V ±0.1V
Signal polarity
Non-inverting
Connector
BNC
Temperature range
0 to +45 °C
Power consumption
+5V/3.5 W, +15V /1.8W
(5.2W when running on a single +5V supply)
Control
RS-422, Multicon GYDA enabled, SNMP
Electrical and optical delay
Less than 100μs (combined through MUX and DEMUX) In
addition comes 5us/km of fiber signal propagation time
SMPTE
SMPTE 346M-2000, SMPTE 292M, SMPTE 259M,
SMPTE 305.2M, SMPTE 297M, SMPTE RP165
DVB-ASI
EN50083-9
3 De-multiplexer specifications
Optical input
Electrical input
Electrical output
Electrical
Latency
Supported standards for electrical and optical ports
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SDI-TD-MUX-4 / SDI-TD-DMUX-4 Rev. N
4 Description
Figure 1: Logical building blocks for SDI-TD-MUX-4(-T)
Figure 2: Logical building blocks for SDI-TD-DMUX-4(-R)
The SDI-TD-MUX-4 board transfers any or all of the four 270 Mbps input signals via an
optical or electrical HD interface according to SMPTE 346M-2000. An SDI-TD-DMUX-4
board is required to reconstruct the four 270 Mbps signals, normally at a remote location and
linked via an optical fiber or an electrical coax cable. The inputs to the SDI-TD-MUX-4 can be
any combination of 270 Mbps SD-SDI or DVB-ASI (188 or 204 word packets).
The output from the SDI-TD-MUX-4 module is either electrical HD according to the SMPTE
346M-2000 standard, or simultaneous electrical and optical HD according to the same
standard if an optional laser module is purchased (in which case the module will identify itself
as an SDI-TD-MUX-4-T).
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SDI-TD-MUX-4 / SDI-TD-DMUX-4 Rev. N
The SDI-TD-DMUX-4 board receives any combination of four 270 Mbps time division
multiplexed SD-SDI or DVB-ASI signals embedded in the 1.485 Mbps HD signal according to
SMPTE 346M-2000. If the customer has purchased an optional pin diode module for optical
input (in which case the module will identify itself as an SDI-TD-DMUX-4-R), there will be an
option available to select either input manually, or to select between them automatically.
All outputs can be either 270 Mbps SD-SDI or DVB-ASI (188 or 204 word packets). Channel
swapping (“shuffler”) is available either from DIP-switches or remotely via the standard
Multicon GYDA interface. Shuffling is available in both modules, in case the two modules are
on different control networks, or only one of the modules is even connected to the control
network. I cases where fewer than four SD signal are transported, the shuffling feature can
also be used to duplicate channels on the outputs, potentially saving a distribution amplifier.
The SD-SDI clocks for each recovered SD channel will be regenerated based on a frequently
received SCR counter (Stream Clock Reference – refer to the SMPTE 346M-2000 standard).
This ensures a stable, low-jitter output.
There are four signal generators available on the board. Each can be set to color bar 525,
color bar 625, black 525 or black 625 from Multicon GYDA. Since the SDI-TD-DMUX-4 does
not have a local clock reference input, a valid SD signal must be present in the HD stream
from the SDI-TD-MUX-4 (i.e. at least one SD signal must be connected to one of the SDI-TDMUX-4 SD inputs) in order to guarantee that the output signals from the test signal
generators in the SDI-TD-DMUX-4 are compliant with the SD clock requirements. The
module will still generate an output based on the video signal that was lost, but without a
clock reference there’s no guarantee that equipment down the signal chain will be able to
lock (or remain locked) to that output.
By default, there is no fallback for missing SD streams. If fallback is set to black or color bar,
the video format (SD-SDI, 525 vs. 625 lines) will be selected automatically based on the
signal that was lost. If the lost signal was DVB-ASI, no fallback will be available, regardless
of the setting.
The board measures the RSSI (Received Signal Strength Indicator) from the optical input.
Normally, the readout (in the Multicon GYDA GUI) shows the signal strength within ±1-2 dB.
However, the measurement is NOT calibrated and the readout should be used as an
indication only. Also, while the readout is fairly linear within a range from -15 dBm to -30
dBm, outside this range the meter will just “bottom out” at -15dBm or -30dBm. If that occurs,
disregard the actual readout but know that the signal is either strong enough with good
margins or too weak to be detectable.
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SDI-TD-MUX-4 / SDI-TD-DMUX-4 Rev. N
5 Configuration
Both multiplexer and de-multiplexer cards are self-configuring in the sense that they will start
working according to default factory settings once power and input signals are applied.
Signals will be routed straight through without swapping/duplication and SD-SDI/DVB-ASI
will be detected and handled automatically.
Configuration parameters can be changed in two ways, via changes to the DIP switches or
via the system controller Multicon. The 8th DIP from the top of the module is labeled OVR. If
this DIP is set to the ON position, DIP switches 1-7 will control the module. Conversely, if it is
set to the OFF position, DIPs 1-7 are disregarded altogether and the module is controlled
from Multicon GYDA. Default settings as delivered from factory should be all DIPs in the Off
position. The module will then be under Multicon GYDA control.
5.1 Multicon GYDA mode
Figure 3: Multicon GYDA presentation of rack with an SDI-TD-MUX-4 module in position 2
Figure 3 shows how Multicon GYDA will present a rack equipped with an SDI-TD-MUX-4
module in rack position 2, an SDI-TD-DMUX-4 module in rack position 6, a Multicon GYDA
module in rack position 9 and a power supply unit in rack positions 10 and 11.
All functions of the card can be controlled through the Multicon GYDA control system. The
Multicon GYDA interface has an information page and a configuration page.
5.1.1 Information page
The information page shows a dynamic block diagram of the board and some additional
information text. The block diagram updates with the board status, showing missing signals
(by red crosses over the appropriate signal lines).
The text table on the information page gives additional information not easily conveyed in a
graphical manner.
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