pro bel 3417 Manual de usuario
Contents
1 Introduction 2
2 Installation 4
2.1 I/O connections 5
3 Configuration 6
3.1 Local card edge controls 6
Setting the output mode
Setting the pattern generator mode
Selecting the pattern lock source
Selecting local/remote operation
DIL switch control summary
3.2 Factory pre-set controls 7
Adjusting the output clamp level
Adjusting the analogue video output
Adjusting the input cable equaliser
4 Status monitoring 10
5 Trouble shooting 12
6 Specification 16
7 Ordering information 18
Technical Manual Issue 1.0 1
3417 HDTV Digital to Analogue Converter
1Introduction
The 3417 is an HDTV digital to analogue converter designed to be used in the ICON
series of 1RU or 3RU frames. It offers Y, Pb, Pr analogue outputs or SVGA output and
two reclocked HD-SDI outputs.
It handles interlaced serial digital signals of 1.485Gb/s and 1.485/1.001 Gb/s
conforming to SMPTE specification 292M - 1080i 30Hz and 1080i 30/1.001 Hz.
The features available are:
•Y, Pb, Pr or VGA outputs
•adaptive input equalisation up to 100m of Belden 1494 or equivalent cable
•re-clocking at 1.485Gb/s or 1.485/1.001 Gb/s (automatic)
•on-board pattern generator locks to incoming video or local oscillator
•convenient error output warns of CRC, Line number and TRS errors
•COSMOS equipped
2chapter 1 Issue 1.0
3417
DC POWER
AND COSMOS
STATUS DATA
POWER
REG
STATUS
MON
SERIAL
HDTV INPUT
HDTV Cable
Equaliser
SERIAL
DIGITAL HDTV
OUTPUT
Re-clock
Digital to
Analogue
Converter SVGA (G,B,R,H,V)
Y, Pb, Pr
3
5
The 3417 HDTV digital to analogue converter
Technical Manual chapter 1 3
3417 HDTV Digital to Analogue Converter
2Installation
The 3417 HDTV digital to analogue converter fits in the 1050 3U and 1051 1U ICON
modular product rackframes.
Please refer to the installation chapter for help with installing modules and rear
connectors into the ICON frame.
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3417
POWER
P
3417
RSF6
RSF1
RSF2
0
1
2
3
4
5
6
7
CONFIGURATION
SW1
RESET
STATUS 1
STATUS 2
STATUS 3
STATUS 4
SIGNAL
ERROR
RESET
REMOTE
TP3
TP5
TP4
TP6
+5VA
+5VC
+5VD
+5VE
TP7
TP9
TP8
TP10
+5VF
+5V
+3V3
+5VF
RV 5
CABLE
LENGTH
ADJUST
RV 4
RV 2
RV 3
RV 1
GND
USR
CLAMP
RSF5
Pb
Pr
Y
PL1
The 3417 HDTV digital to analogue converter
2.1 I/O connections
The 3417 is used with the 30mm K3417-3 rear connector.
The HDTV input uses one BNC whilst re-clocked versions of the input are available
on two further BNCs. Component outputs provided comprise Y, Pb and Pr on BNCs
and an SVGA monitor feed on a 15 pin high density connector. There is also a BNC
connector for the TTL error output signal.
Use a standard VGA cable for the SVGA monitor output.
Technical Manual chapter 2 5
3417 HDTV Digital to Analogue Converter
K3417
.3
OUT 1
VGA
INPUT
Y/GRN
OUT 2
Pb/BLUE
Pr/RED
ERROR
The K3417-3 rear
connector
3Configuration
3.1 Local card edge controls
DIL switch settings control the following output and pattern generator modes:
Setting the output mode
The 3417 may be used in either the Y, Pb, Pr mode or the VGA mode. Make the
selection with front edge DIL switch 0 as shown in the following diagram:
Setting the pattern generator mode
The pattern generator mode generates 100% colour bars to SMPTE 274M. Select the
pattern generator mode by pushing DIL switch 1 DOWN. Leave DIL switch 1 UP for
normal operation as a digital to analogue converter.
Selecting the pattern lock source
The pattern may be referenced to the incoming HDTV signal or an on-board clock.
Set DIL switch 2 DOWN to lock to the HDTV input and UP to lock to an internal clock.
Selecting local/remote operation
The 3417 may be operated using the local DIL switches or via the COSMOS
application. Set DIL switch 7 DOWN for remote operation and UP for local operation.
6chapter 3 Issue 1.0
3417
0
1
2
3
4
5
6
7
CONFIGURATION
SW1
RESET
RESET
Push DIL switch 0
DOWN, towards the
card, for VGA mode
and UP for Y,Pb,Pr
mode
DIL switch control summary
The available switch settings are summarised in the following table:
3.2 Factory pre-set controls
Adjusting the output clamp level
The analogue video output clamping level may be adjusted over the range of ±1V by
using clamp potentiometer RV1, providing jumper PL1 is in the USR position. Leave
PL1 in the GND position to set the output clamp for 0V operation. PL1 and RV1 are
near the module edge connector and cannot normally be accessed with the card
fitted in a rackframe.
Technical Manual chapter 3 7
3417 HDTV Digital to Analogue Converter
Switch settings
DIL lever Function
0ON = VGA mode, OFF = Y,Pr,Pb mode
1ON = pattern generator mode, OFF = DAC mode
2ON = pattern lock to reference, OFF = pattern lock to clock
3Not used
4Not used
5Not used
6Not used
7ON = remote control mode, OFF = local control mode
RV1 adjusts output
clamp level with
PL1 in the USR
position
RV 1
GND
USR
CLAMP
PL1
Adjusting the analogue video output
Individual adjustments are provided for Y, Pb and Pr output amplitude. These
adjustments are pre-set at the factory and should not require re-adjustment. Access
to these controls, which are sited near the module edge connector, is not normally
available with the card fitted in a rackframe.
Adjusting the input cable equaliser
The input cable equalisation is factory set for 100 metres of cable. Access to RV5,
cable length adjust potentiometer is not normally available with the card fitted in a
rackframe.
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3417
Factory presets
RV3, RV4 and RV2
adjust Y, Pb and Pr
outputs.
RV 4
RV 2
RV 3
GND
USR
Pb
Pr
Y
PL1
Factory preset RV1,
adjusts input cable
equalisation
RV 5
CABLE
LENGTH
ADJUST
RV 4
RV 2
Pb
NOTE: The cable equalisation should adapt automatically for 0-100 metres of cable
Technical Manual chapter 3 9
3417 HDTV Digital to Analogue Converter
4Status monitoring
The COSMOS frame interface, if fitted, will provide the following information to the
COSMOS status monitoring system:
•Input error
•Module power LED status
•Reset
•DIL switch status
In remote mode, the Y, Pb, Pr /VGA output signal format selection and pattern modes
may be controlled through COSMOS.
In addition, the module is programmed with the following information, which can be
read by the status monitoring controller:
•module present
•module type
•module bar code
•module issue no
For further details of the Pro-Bel status monitoring system please refer to the
COSMOS status monitoring manual.
10 chapter 4 Issue 1.0
3417
Tabla de contenidos
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