Network Electronics ASA Flashlink DA-T140 Manuale utente
network-electronics.com
140-155 Mbps Serial Digital
Distribution Amplifier
Rev. 6
Flashlink User Manual
DA-T140
DA-T140 Rev. 6
Network Electronics ASA
Thorøya
P.O. Box 1020
N-3204 Sandefjord, Norway
Phone: +47 33 48 99 99
Fax: +47 33 48 99 98
Email: [email protected]
www.network-electronics.com
Support Phone: +47 90 60 99 99
Revision history
Current revision of this document is the uppermost in the table below.
Rev. Repl. Date Sign Change description
6 5 2007-10-25 AS New front page.
5 4 2007-10-05 AS Added Materials Declaration and EFUP
4 3 2007-01-29 SHH Updated manual to DA-SDI-mkII design with 8
outputs.
3 2 2004-12-23 Corrected The input typically provides an automatic
cable equaliser for up to 250 metres of cable (Belden
8281A at 140Mbps) with 6 outputs. All 6 outputs
are non-inverting.
Figure 1 (Block scheme).
2 1 2004-02-12 Added info about termination.
1 A 2003-05-13 First release
A - 2003-05-02 Preliminary version
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DA-T140 Rev. 6
Contents
Revision history..........................................................................................................2
1 Product overview....................................................................................................4
2 Specifications..........................................................................................................5
3 Configuration .........................................................................................................6
3.1 Configuration examples................................................................................................. 7
4 Connections ...........................................................................................................8
4.1 Mounting the connector module................................................................................... 9
5 Module status.......................................................................................................10
5.1 GPI Alarm – Module Status Outputs............................................................................. 10
5.2 Front Panel - Status Monitoring ................................................................................... 11
General environmental requirements for Network Electronics equipment................12
Certificate of Conformity .........................................................................................13
Product Warranty ....................................................................................................14
Appendix A Materials declaration and recycling information ...................................15
A.1 Materials declaration ................................................................................................... 15
A.2 Environmentally-friendly use period ............................................................................. 15
A.3 Recycling information.................................................................................................. 16
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DA-T140 Rev. 6
1Product overview
The DA-T140 is a serial digital distribution amplifier module providing high performance
media distribution for various signal formats from 1Mbps up to 540Mbps. The unit is
specially designed to handle 140Mbps and 155Mbps and can be configured to do cable
equalising of ITU-T G.703 signal formats.
The input typically provides an automatic cable equaliser for up to 250 metres of cable
(Belden 8281A at 140Mbps) with 6 outputs. All 6 outputs are non-inverting.
Figure 1: DA-T140 - 140-155Mbps Serial Digital Distribution Amplifier.
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DA-T140 Rev. 6
2Specifications
Electrical Input
Data rate NRZ: 1 to 540 Mbps
Data rate RZ: 1 to 270 Mbps
Equalisation: Automatic
Cable equaliser can be bypassed to support bitrates down to
1Mbps.
Impedance: 75 ohm
Return loss: >15dB (500kHz – 270MHz)
Signal level: nom. 1000mV
approx. 200mV min. when equaliser switched to Bypass
Connector: BNC
Electrical Output
Number of outputs: 8 (6)
Connector: BNC
Impedance: 75 ohm
Return loss: >15dB (500kHz – 270MHz)
Jitter: max 0.2UI
Peak to peak signal level: 1V ± 0.1V
Signal polarity 6 non inverting, 2 inverting
Features
Input equaliser: EQ bypass for low bit rates
Electrical
Power: +5V DC / 3W Max.
Control: Control system for access to setup and module status with BITE
(Built-In Test Equipment) for use with GYDA Control System.
Supported standards
ITU-T: ITU-T G.703.
AES: AES-3id (with EQ switched off)
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DA-T140 Rev. 6
3Configuration
The DA-T140 can support a number of different formats. The correct configuration can
either be set with a DIP switch or with the GYDA Control System. The layout of DA-T140 is
shown in the drawing below with the DIP switch to the upper left position.
Figure 2: DA-T140 board layout.
DIP switch configuration must be set according to the table below:
Switch # Label Function DIP=OFF Function DIP=ON Comment
1 ARB NA NA NA
2 EQM Equaliser forced not to
mute
Automatic muting of
equaliser when signal
strength is too low
Input mute
3 RCL NA NA NA
4 EQ Cable equaliser Bypass Cable equaliser ON Equaliser mode
5 ASI NA NA NA
6 SLL NA NA NA
7 BWL NA NA NA
8 OVR GYDA control
Config. with GYDA
Override GYDA control
Config. with DIP switch
Select GYDA
config. mode
All DIP switches are off when pointing towards the release handle.
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DA-T140 Rev. 6
3.1 Configuration examples
Typical configurations for DA-T140:
Figure 3: Default, ITU-T G.703.
Figure 4: AES3id compatible and Low Bit rate without equalisation.
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DA-T140 Rev. 6
4Connections
The DA-T140 has two dedicated connector module: DA-SDI-C1 and DA-SDI-C2. This module
Figure 5: DA-SDI-C1 connector module.
is mounted at the rear of the sub-rack. The module is shown in Figure 5 and Figure 6.
The electrical input signa the electrical outputs are
l is connected to the IN BNC and
connected to the O1 to O6 BNC’s. Please note that all 6 outputs are non-inverted.
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DA-T140 Rev. 6
On DA-SDI-C2 the electrical input signal is connected to the IN BNC and the electrical
outputs are connected to the O1 to O6 BNC’s. Please note that outputs 1 to 6 are non-
inverted, while outputs 7 and 8 are not available.
Figure 6: Overview of the DA-SDI-C2 connector module
Unused outputs should be terminated with 75 ohm.
DA-SDI-C2 does not have any GPI alarm outputs.
All unused outputs should be terminated.
4.1 Mounting the connector module
The details of how the connector module is mounted, is found in the user manual for the
sub-rack frame FR-2RU-10-2.
This manual is also available from our web site: http://www.network-electronics.com/.
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DA-T140 Rev. 6
5Module status
The status of the module can be monitored in three ways.
1. GYDA System Controller (optional).
2. GPI at the rear of the sub-rack.
3. LED’s at the front of the sub-rack.
Of these three, the GPI and the LED’s are mounted on the module itself, whereas the GYDA
System Controller is a separate module giving detailed information on the card status. The
functions of the GPI and the LED’s are described in sections 5.1 and 5.2. The GYDA
controller is described in a separate user manual.
5.1 GPI Alarm – Module Status Outputs
These outputs can be used for wiring up alarms for third party control systems. The GPI
outputs are open collector outputs, sinking to ground when an alarm is triggered. The GPI
connector is shown in Figure 7.
Electrical Maximums for GPI outputs
Max current: 100mA
Max voltage: 30V
DA-T140 module GPI pinning:
Figure 7: GPI outlet.
Signal Name Pin # Mode
Status General error status for the module. Pin 1 Open Collector
Rate NA Pin 2 Open Collector
LOS Loss Of Signal Pin 3 Open Collector
LOCK NA Pin 4 Open Collector
Ground 0 volt pin Pin 8 0V
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