Link L1125 User manual

L1125 User Guide
L1125 Camera Control System
L1125 shown with a LinkXP Transmitter (sold separately)
Images are for illustration only and may differ from components supplied
Link Research Ltd, 23 Watford Metro Centre, Dwight Road, Watford, Herts, WD18 9XA, K
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L1125 User Guide
L1125 System Components
1) 1 x L1125 Reverse Control Camera Back
2) 1 x L3421 1.95-2.7GHz Flexible antenna
3) 1 x Rain Guard
4) 1 x Latch Plate (fixes to LinkXP Transmitter)
5) 1 x L3040 Transmit Filter
6) 1x L1303 XPe Transmitter
7) 1x L3522 XPe TX Antenna
8) 1 x Link XPRV Cable Pack
9) 1x L1251 OCP Interface
Connecting the LinkXP transmitter to the L1125
Flying leads in the L1125 connector
box plug into the connectors on the
base of the LinkXP transmitter. The
connections are labelled according
to the connector they plug into, i.e.
Connection XP connector
XP Power -> DC IN
XP RS323 -> RS232
XP A DIO 1 -> A DIO 1
XP A DIO 2 -> A DIO 2
XP VIDEO Y -> Y/VID/SDI
XP VIDEO ->
XP VIDEO V -> V
If using a composite video connection from the camera instead of the component
connections, connect XP VIDEO COMP to the Y/VID/SDI connector. Otherwise this
connections is fitted to the back of the BNC jack on the connector box.
The foam rain guard shields the connectors.
Images are for illustration only and may differ from components supplied
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L1125 User Guide
A latch plate is fixed to the LinkXP transmitter to
allow it to be mounted on the L1125 Camera Back.
The tongues on the lower part of the latch plate
slide into slots in the rear panel of the camera back,
the transmitter is then fixed in place with two
screws through the top bracket on the latch plate.
Connecting the L1125 to the
camera
The L1125 Camera Back has a standard BVV-5
camera interface, it is secured to the camera by
two thumbscrews. The video, power and (in some
cases) control signals for the camera pass through
the BVV-5 connector.
Some cameras (e.g. Philips LDK 100/200, Sony 950)
do not provide access to their control link via the
BVV-5 interface and require an external control
cable (e.g. L0016 or L0017). The control cable goes
from the L1125 “EXT” connector to the camera’s
external control connector.
Connecting the battery
The Lemo lead from the battery mounting plate plugs into the power connector on
the rear of the L1125.
The battery mount has a rocker switch on top, this switch controls power to the
LEMO connector to allow the entire system and camera head to be powered on or
off.
Images are for illustration only and may differ from components supplied
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L1125 User Guide
Configuring the L1125 and the LinkXP transmitter
via the L1125 menu system
Exit
Button
Display Area
Enter
Button
LED
Navigation
Status
Keys
Indicators
The control panel on the side of the L1125 allows the camera back and the LinkXP
transmitter to be configured.
Control Panel Status Indicator Meanings
The POWER LED is green whenever power is applied unless status LED
illumination has been turned off in the menu.
The TX LED reflects the status of the LinkXP RF LED, on when the transmitter is
active.
The RX LED flashes when a command has been received and successfully
transferred to the camera (This may be continuously illuminated).
The ALARM LED is red whenever there is an alarm condition, the source of the
alarm will be shown on the bottom of the display, possible alarm sources are:
CTL Camera control disabled, this is displayed if control has been turned
off in the menu or, if so configured, control has been disabled
automatically because the data link has been inactive more than 12
seconds.
VID Video Alarm, shown if LinkXP is not locked to a valid video source
FWD Forward Path alarm, RS232 communications to LinkXP has been lost
(e.g. RS232 cable disconnected or LinkXP set to IR mode)
Images are for illustration only and may differ from components supplied
Link Research Ltd, 23 Watford Metro Centre, Dwight Road, Watford, Herts, WD18 9XA, K
Telephone [phone] (general), [phone] (Customer Support)
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L1125 User Guide
L1125 Menus
Initial Display after power-up
Press the Enter button for menus
The Memory Menu
The entries in the Memory menu are used to load and store profiles or to reset all settings
to their default values.
Press the Enter button to go into the Memory menu
Press the Enter button at this point to select a
profile in which to save the current settings of all
menu entries
se the up/down buttons to choose a profile
then press the Enter button to store, or press
the Exit button to quit without storing the
settings.
Press the Enter button at this point to select a profile
from which to retrieve settings for all menu entries
se the up/down buttons to choose a profile
then press the Enter button to load, or press the
Exit button to quit without loading the settings
Press the Enter button then use the up/down buttons
to choose Yes, then press Enter again to reset all
settings to their default values.
Note 1: The PROFILE button on the LinkXP transmitter can also
be used to load the settings for the rofile it selects.
Note 2: If the L1125 is owered off it will ower u with the
settings last saved to the rofile that was in use,
setting changes MUST be saved to a rofile to reserve
them after ower cycle.
Images are for illustration only and may differ from components supplied
Link Research Ltd, 23 Watford Metro Centre, Dwight Road, Watford, Herts, WD18 9XA, K
Telephone [phone] (general), [phone] (Customer Support)
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Link XPR L1125
V0.48
Memory…
Store Profile…
Restore Defaults…
-> 1
-> 1
-> No -> Yes
Load Profile…

L1125 User Guide
The Forward Path Menu
The entries in the Forward Path menu are used to configure the settings of the LinkXP
transmitter.
Press the Enter button to go into the Forward Path menu
Press Enter then use the up/down buttons to select
the required modulation scheme
Press Enter
then use
the
up/down buttons to select the required transmit power, press Enter to apply the setting
Press the
Enter
button to
edit the frequency
se the left/right buttons to select digits in the
frequency and the up/down buttons to change
them, press Enter to apply the new frequency
Press Enter then use the up/down buttons to select
the Forward Error Correction ratio
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Forward Path…
Mode: QPSK
FEC: 1/2
-> 3/4
-> 002.3950 GHz
-> 100 mW
-> 50 mW
-> 10 mW
-> 5/6
-> 7/8-> 1/2-> 2/3
Freq: 2.3950 GHz
Power: 100 mW
-> 64QAM
-> 16QAM
-> QPSK

L1125 User Guide
Press Enter then use the up/down buttons to select
the required video format. “NTSC No Ped” is
composite video with no pedestal (i.e. black level
0IRE instead of 7.5IRE)
Bars are generated
by LinkXP
Note 1:
The com osite formats are only a ro riate if the camera has been
connected to the L1125 via a com osite video connection instead of
com onent connections
Press Enter to configure the settings for the audio
channel from the camera (one mono signal)
Press Enter then use the up/down buttons to
configure the amplifier gain
Press Enter then use the up/down buttons to
select either microphone level or line level
Press Enter then use the up/down buttons to
turn microphone phantom power (48V) on or off
Images are for illustration only and may differ from components supplied
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Input: PAL
Camera Audio…
Mic/Line: Mic
Gain: 50 dB
-> NTSC
-> PAL-N
Mic Power: Off
-> 50 dB
-> Mic-> Line
-> Off-> On
-> YPbPr 525-> YPrPb 525 -> 525 Betacam
-> PAL
-> PAL-M
-> NTSC No Ped
-> Bars 525-> Bars 625
-> YPbPr 625

L1125 User Guide
Press Enter to configure settings for the audio channel
from the L1125 Headphone/Audio XLR connector (one
mono signal)
Press Enter then use the up/down buttons to
configure the amplifier gain
Press Enter then use the up/down buttons to
select either microphone level or line level
Press Enter then use the up/down buttons to
turn microphone phantom power (48V) on or off
Press Enter to configure settings for the Audio 2
channel on the LinkXP transmitter (one stereo signal)
Press Enter then use the up/down buttons to
turn the Audio 2 channel on or off
This menu entry provides additional information for
any alarm indications shown on the bottom line of the
display
Images are for illustration only and may differ from components supplied
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Telephone [phone] (general), [phone] (Customer Support)
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Audio 2…
Status: OK
External Audio…
Mic/Line: Mic
Gain: 50dB
Mic Power: Off
-> 50dB
-> Mic-> Line
-> Off-> On
-> Off
-> On
Audio 2: Off

L1125 User Guide
The Reverse Path Menu
The entries in the Reverse Path menu are used to configure camera control settings.
Press enter to edit the frequency.
se the left/right buttons to select digits in the
frequency and the up/down buttons to change
them, press Enter to apply the new frequency
Press Enter then use the up/down buttons to select
the camera address
Press Enter to apply the selection
Camera selection, current choices (as of software
V0.48):
Philips LDK100, Panasonic AWE600, Sony DXC-
D30/D35,
JVC KY-D29, Type 12, Type 13, Type 14, Type 15,
Sony BVP-70, Sony BVP-30, Ikegami Handheld,
Ikegami Studio, Sony BVP90/550, Hitachi Z-
3000, Ikegami (1-Way), Sony 950/BVP-E10. All
the cameras supported by L1125, including
details of any modifications and drawings for
cables, are listed under "support options" at
www.linkres.co.uk
Changes the camera control protocol (dependent on
camera type.)
Only offered if the camera supports control through
the BVV-5 or an external cable, choose the connection
method used
Images are for illustration only and may differ from components supplied
Link Research Ltd, 23 Watford Metro Centre, Dwight Road, Watford, Herts, WD18 9XA, K
Telephone [phone] (general), [phone] (Customer Support)
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Reverse Path…
Freq: 2.1000 GHz
-> 002.1000 GHz
Camera Address: 1
Cam: Sony BVP-30
-> 1
-> Sony BVP-30
Control Mode: 0
-> 0-> 1
Cam I/F: Internal

L1125 User Guide
Images are for illustration only and may differ from components supplied
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-> Internal-> External

L1125 User Guide
This menu entry provides additional information for
any problems with the reverse path.
This entry is used
to disable
camera control
(the Off setting,
which restores local control), to enable camera control
(the On setting) or to automatically disable control if
the reverse link is lost for > 12 seconds (the Auto
setting).
Details
core
parameters relating to the cameraback mounted receiver such as SNR, MER, Pre and Post
Viterbi figures.
This entry is used to adjust the output level of the
talkback headset.
Press Enter to apply the selection
This entry is used to change the polarity of the Ret
lens switch when controlling the external video
socket.
Images are for illustration only and may differ from components supplied
Link Research Ltd, 23 Watford Metro Centre, Dwight Road, Watford, Herts, WD18 9XA, K
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Camera Control:
-> Auto-> On-> Off
Status: OK
Quality…
Headphone Gain: 0
SW Polarity:
-> 1
-> Normal
l
-> Inverse

L1125 User Guide
The Unit Menu
The nit menu is used to configure settings for the L1125 camera back.
This Entry defines the function of the rear RS232
connection. Its normal use is for data to be passed to
LinkXP, but it can also be configured to allow RS232
connection to the receiver or the LinkXP control port.
N.B. If Decoder Control or XP Control are selected camera
control is lost until ower to the L1125 is turned off and back
on
This Entry adjusts the LCD contrast.
Note: LCD Contrast is not saved in profiles
Press Enter to apply the selection
Setting Lock to On revents any menu
setting changes from being a lied.
Images are for illustration only and may differ from components supplied
Link Research Ltd, 23 Watford Metro Centre, Dwight Road, Watford, Herts, WD18 9XA, K
Telephone [phone] (general), [phone] (Customer Support)
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nit…
RS232: XP Data
Lock: Off
-> 5
-> Off-> On
LCD Contrast: 5
-> Cam Control
-> Decoder Control
-> XP Control
-> XP Data

L1125 User Guide
The pgrade entry is used to configure the system for
software
upgrading via the
rear RS232
connection. pgrades are downloaded via a terminal
package (e.g. Tera Term)
If any of the U grade entries are set to Re rogram
normal o eration is not restored until ower is
turned off and on
Set the XP entry to Reprogram then press Enter
to upgrade software in the LinkXP transmitter
Set the Control Panel entry to Reprogram then
press enter to upgrade software in the L1125
camera back
Set the Decoder entry to Reprogram then press
Enter to upgrade software in the Decoder.
Detailed instructions on reprogramming the L1125 are given at the end of this ser
Guide.
Warning: If u grading the L1125 camera back
software the u grade must be com leted before
the L1125 can be used again. If the u grade does
not com lete successfully or ower is interru ted
during the u grade the L1125 will a ear to be
dead. Once the software u grade has been
successfully com leted normal o eration will be
restored.
Images are for illustration only and may differ from components supplied
Link Research Ltd, 23 Watford Metro Centre, Dwight Road, Watford, Herts, WD18 9XA, K
Telephone [phone] (general), [phone] (Customer Support)
© Link Research Limited 2004, 2005 Page 13 of 25
pgrade…
XP…
-> Cancel-> Reprogram
Control Panel…
-> Cancel-> Reprogram
Decoder…
-> Cancel-> Reprogram

L1125 User Guide
Selecting Off turns off the status LEDs (the display
backlight turns off automatically 6 seconds after the
last button press)
The Temperature entry shows the current internal
temperature of the L1125. The internal fan will try to
keep the internal temperature to 40°C
The Self Test entry is used to run internal tests, the
results are output via the rear RS232 connector
(terminal connection at 9600Baud, 8 data bits, no
parity, 1 stop bit)
This indicates the version of CPLD code inside the
unit. This information may be required by Link
research in the event of a support call.
Images are for illustration only and may differ from components supplied
Link Research Ltd, 23 Watford Metro Centre, Dwight Road, Watford, Herts, WD18 9XA, K
Telephone [phone] (general), [phone] (Customer Support)
© Link Research Limited 2004, 2005 Page 14 of 25
Status LEDs: On
-> On-> Off
Temperature: 28C
Self Test: Off
-> Off-> Run
CPLD Version : 4

L1125 User Guide
System Setup Guidelines
The Link XPRV system is a state of the art digital wireless camera system. There are many
complicated options but by following a few simple guidelines incredible results can be
achieved.
The LinkXP manual covers the forward path of the system in detail and as such that will not
be covered here. Included in the system are two pictorial setup diagrams these indicate
the physical interconnections of the system and which cables to use. The XPRV Basic
setup diagram details how to setup the standard system, while the XPRV Triax diagram
covers the setup of the optional triax system.
The reverse video system can operate with a return frequency in the range 2-
2.11Ghz. When using a forward path frequency in the range 2.2-2.4GHz the Link
L3040 transmit filter must be used on the camera mounted transmitter, when in
the 2.4-2.7GHz range the Link L3041 transmit filter must be used.
It is important that the L1303 XPe transmitter is positioned at least 10m away from the
receiving downconverters ensure no degradation in performance of the forward path link.
Images are for illustration only and may differ from components supplied
Link Research Ltd, 23 Watford Metro Centre, Dwight Road, Watford, Herts, WD18 9XA, K
Telephone [phone] (general), [phone] (Customer Support)
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L1125 User Guide
System description – Standard
Control data is generated by the OCP, a short breakout cable connects to the OCP to bring
out the serial data and provide power from a local supply. The serial data connections are
terminated in 3 pin XLR connectors to allow a standard audio cable to be used where long
distances are required. The control data is combined with another power supply and fed
into the L1251 OCP interface which translates the data into a new format. The newly
formatted data is fed into the L1303 XPe transmitter along with the reverse video for
transmission to the camera.
Images are for illustration only and may differ from components supplied
Link Research Ltd, 23 Watford Metro Centre, Dwight Road, Watford, Herts, WD18 9XA, K
Telephone [phone] (general), [phone] (Customer Support)
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L1125 User Guide
System Description – Triax (Optional)
Control data is generated by the OCP, and fed into the L1251 OCP interface which
translates the data into a new format. The newly formatted data is fed into the L1000 Low
delay encoder where it is encoded and modulated with the reverse video. This signal is
sent down the triax cable along with power by the L1271 Triax Base unit. At the far end of
the triax cable the L1272 triax Remote unit removes the power from the cable and feeds
the modulated signal into an L2102 IRD. An ASI signal is taken from this and fed into an
L1303 XPe transmitter for transmission on to the camera.
Images are for illustration only and may differ from components supplied
Link Research Ltd, 23 Watford Metro Centre, Dwight Road, Watford, Herts, WD18 9XA, K
Telephone [phone] (general), [phone] (Customer Support)
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L1125 User Guide
(a)Setting up the L1250 operator’s control panel
Connect the 9-way D-sub connector to the PREVIEW/TALLY connector on the base of the
L1250. The other end of the cable will go to the master switcher or control matrix in the
OB van. (Breakout cable is provided)
Select the unit address using the rotary switch on the right side of the unit. Any number
between 1 and 8 is a valid address. Do not select 0 as this is a special test mode. Both
L1250 and L1125 must have the same address selected.
Switch positions on the side of the operator’s control panel
When the OCP is turned on, it will initially display RF cam and the address of the unit. After
a short time, it will then display a camera type. sing the + and – buttons cycles through a
list of camera types: the camera type shown in the display is the currently selected
camera.
When using multiple OCP’s the final one in the chain must have its termination switch set
to ON (Down). If only one OCP is used then this is the last and only one in the chain and
therefore requires termination to be set to ON.
Images are for illustration only and may differ from components supplied
Link Research Ltd, 23 Watford Metro Centre, Dwight Road, Watford, Herts, WD18 9XA, K
Telephone [phone] (general), [phone] (Customer Support)
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L1125 User Guide
Cable & Connector Details
L0016 Control Cable for Philips LDK100/200 cameras
Lemo
FGG0B305CLAD52Z
9-Way D-Type socket Signal
1 3 Receive data
2 7 CTS
3 8 RTS
4 2 Transmit data
L0017 Control Cable for Sony 950 cameras
Lemo
FGG0B305CLAD52Z
Hirose MXR-8PA-8PB Signal
1 1 Tx+ from
camera
2 2 Tx– from camera
3 3 Tx+ to camera
4 4 Tx- to camera
L0023 Control Cable for Sony DXC-Dxx Cameras
Lemo
FGG0B305CLAD52Z
Hirose HR10A-10P-10P Signal
3 7 RTS
4 4 Transmit data
L0024 Control Cable for Ikegami cameras
Lemo
FGG0B305CLAD52Z
Hirose HR10B-10PA-
10PG
Signal
1 3 Receive data
2 4 CTS
3 1 RTS
4 2 Transmit data
L0026 Tally/Preview Cable
9-way D-Type socket 3-way XLR
plug
3-way XLR
socket
Signal
2 2 Not used Tally +
6 3 Not used Tally –
3 Not used 2 Preview Contact 1
4 Not used 3 Preview Contact 2
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Telephone [phone] (general), [phone] (Customer Support)
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L1125 User Guide
L1125 Headphone/Audio connector (mating connector is 5-way XLR
plug)
5-way XLR socket Signal
1 Microphone in +
2 Microphone in -
3 GND
4 Headphone Out
5 Headphone Out
L1125 & L1303 Power connector (mating connector Lemo
FGG1B304CLAD62Z)
Lemo
FGG1B304CLAD62Z
Signal
1 GND
2
3
4 +Ve
L1125 RS232 connector (mating connector is Lemo
FGF0B306CLAD52Z)
Lemo EEF0B306CLL Signal
1 External RS232 Rx
2 External RS232 Tx
3 GND
4 Tally 1 + (300mA max)
5 Tally 2 - (300mA max)
6 GND
Example external Tally Circuit
Battery -ve
Pin 5
Pin 4
Battery +ve
600R (Approx)
Images are for illustration only and may differ from components supplied
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Telephone [phone] (general), [phone] (Customer Support)
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