Snell IQOTX81 User manual

User Manual
IQOTX80, IQOTX81, IQOTX82
IQOTX83, IQOTX84, IQOTX99
3G/HD/SD-SDI Multi-Channel Fiber
Transmitter
snellgroup.com

IQOTX80/81/82/83/84/99 www.snellgroup.com
Contents
Module Description........................................................................................................................... 3
Block Diagram............................................................................................................................... 3
Rear Panel View............................................................................................................................... 3
Order Codes ..................................................................................................................................... 4
Feature Summary............................................................................................................................. 4
Technical Profile ............................................................................................................................... 5
Inputs and Outputs........................................................................................................................ 5
Controls......................................................................................................................................... 5
Specifications................................................................................................................................ 6
Connections...................................................................................................................................... 7
SDI Inputs...................................................................................................................................... 7
Fiber Outputs................................................................................................................................. 7
Card Edge Controls .......................................................................................................................... 8
Controlling the IQOTX80/81/82/83/84/99 from the RollCall Control Panel ....................................... 9
Unit Status..................................................................................................................................... 9
System-Setup Screen ................................................................................................................. 10
SDI-Inputs 1-4 Screen................................................................................................................. 11
SDI-Inputs 5-8 Screen................................................................................................................. 13
Output-Fiber Screen.................................................................................................................... 15
System-Memory 1-16 Screen...................................................................................................... 16
Logging........................................................................................................................................ 17
RollCall Log Fields................................................................................................................... 22
System-RollTrack Screen............................................................................................................ 24
To configure a RollTrack action:.............................................................................................. 25
Viewing RollTrack Information................................................................................................. 25
This information applies to the transmitter modules in the Optical Converter Platform range. In the
case of the IQOTX99, some of the RollCall screens will be missing if the SFPs for the channels
associated with those screens are not fitted and, in some cases, although the screen will be
present, the group boxes or controls associated with particular channels will be missing or
disabled.
The different versions of the standard product simply have different wavelength fiber transmitters
fitted.
Issue 1 Rev 2 © 2012 Snell Limited
Page 2

IQOTX80/81/82/83/84/99 www.snellgroup.com
Issue 1 Rev 2 © 2012 Snell Limited
Page 3
Module Description
The IQOTX80-84 range converts eight 3G/HD/SD-SDI signals to eight single mode fiber optic
outputs. The unit is available in single or dual width versions with either DIN1.0/2.3, HDBNC or
BNC connectors.
The IQOTX99 is a special version of the product with a partial fit of channels or with non-standard
combinations of wavelengths.
Block Diagram
Rear Panel View
Single width Fibre and DIN1.0/2.3 (IQOTX8_78-1A3)
Single width Fibre and HD BNC (IQOTX8_79-1A3)
Double width Fibre and BNC (IQOTX8_80-2A3)
8
8642
FIBER OUT 2
7531
FIBER OUT 1
1
SERIAL IN 2
IQOTX8_
80-2A3
7
2
4
3
SERIAL IN 1
5
6
FIBER OUT 1
SER
IN
1
IQOTX8_
78-1A3
FIBER OUT 2
SER IN 2
86 3
4
75
1
2
86427531
FIBER OUT 1
SER
IN
1
IQOTX8_
79-1A3
FIBER OUT 2
SER IN 2
86 3
4
75
1
2
86427531

IQOTX80/81/82/83/84/99 www.snellgroup.com
Order Codes
Versions of the module cards available are:
SFP fit options for different wavelength operation.
CH1/2 CH3/4 CH5/6 CH7/8
IQOTX80 Dual 1310nm Dual 1310nm Dual 1310nm Dual 1310nm
IQOTX81 Dual 1550nm Dual 1550nm Dual 1550nm Dual 1550nm
IQOTX82 1270/1290nm 1310/1330nm 1350/1370nm 1390/1410nm
IQOTX83 1470/1490nm 1510/1530nm 1550/1570nm 1590/1610nm
IQOTX84 Dual 1310nm Dual 1310nm Dual 1550nm Dual 1550nm
IQOTX8078-1A3 3G/HD/SD-SDI multi-channel fiber transmitter. 8 x 3G/HD/SD-SDI inputs
(DIN 1.0/2.3), 8 x 1310nm optical outputs.
IQOTX8079-1A3 3G/HD/SD-SDI multi-channel fiber transmitter. 8 x 3G/HD/SD-SDI inputs
(HD-BNC), 8 x 1310nm optical outputs.
IQOTX8080-2A3 3G/HD/SD-SDI multi-channel fiber transmitter. 8 x 3G/HD/SD-SDI inputs
(BNC), 8 x 1310nm optical outputs.
IQOTX8178-1A3 As IQOTX8078-1A3 but fitted with 1550nm optical transmitters.
IQOTX8179-1A3 As IQOTX8079-1A3 but fitted with 1550nm optical transmitters.
IQOTX8180-2A3 As IQOTX8080-2A3 but fitted with 1550nm optical transmitters.
IQOTX8278-1A3 As IQOTX8078-1A3 but fitted with 1270-1410nm CWDM optical transmitters.
IQOTX8279-1A3 As IQOTX8079-1A3 but fitted with 1270-1410nm CWDM optical transmitters.
IQOTX8280-2A3 As IQOTX8080-2A3 but fitted with 1270-1410nm CWDM optical transmitters.
IQOTX8378-1A3 As IQOTX8078-1A3 but fitted with 1470-1610nm CWDM optical transmitters.
IQOTX8379-1A3 As IQOTX8079-1A3 but fitted with 1470-1610nm CWDM optical transmitters.
IQOTX8380-2A3 As IQOTX8080-2A3 but fitted with 1470-1610nm CWDM optical transmitters.
IQOTX8478-1A3 As IQOTX8078-1A3 but fitted with 1310nm and 1550nm optical transmitters.
IQOTX8479-1A3 As IQOTX8079-1A3 but fitted with 1310nm and 1550nm optical transmitters.
IQOTX8480-2A3 As IQOTX8080-2A3 but fitted with 1310nm and 1550nm optical transmitters.
Note: All these versions are also available for the new IQ 3U B enclosure. Please append order
code with A3 (A enclosure) or B3 (B enclosure) as appropriate.
Feature Summary
•8 channels of fiber outputs single mode fiber optic Transmitter for 3G/HD/SDSDI
and DVB ASI signals.
•8 channels of electrical SDI inputs for 3G/HD/SDSDI and DVB ASI signals.
•Output wavelengths of 1310nm, 1550nm or CWDM combinations .
•Reclocking for 3Gbps, 1.5 Gbps HD-SDI and 270 Mbps SDI signals, or
asynchronous operation for other frequencies.
•Input channel routing – inputs 1 to 4 can be routed to output channels 1 to 4,
and inputs 5 to 8 can be routed to output channels 5 to 8.
•Input selection logic – two configurations can be preset with routing.
Configurations can be selected on input signal status.
•RollCall monitoring allows all signal paths to be managed.
•High density DIN1.0/2.3 and HDBNC options provide compact space saving
single slot solution.
•The SFP transmitters are hot-pluggable – i.e. they may be removed and inserted
without removing power from the module.
Issue 1 Rev 2 © 2012 Snell Limited
Page 4

IQOTX80/81/82/83/84/99 www.snellgroup.com
Technical Profile
Inputs and Outputs
Signal Inputs
Electrical 3 Gbps HD-SDI, 1.485 Gbps HD-SDI or 270 Mbps SD-SDI (asynchronous
operation available at other frequencies)
Connector / format BNC / 75 ohm, DIN1.0/2.3, HDBNC panel jack
Conforms to SMPTE 424M (HD level A)
SMPTE 292M (HD)
SMPTE 259M-C (SD)
Inputs 8
Input cable length Up to 100m Belden 1694A @ 3Gbps
Up to 150m Belden 1694A @ 1.5 Gbps
Up to 250m Belden 1694A @ 270 Mbps
Signal Outputs
Optical 3 Gbps HD-SDI, 1.485 Gbps HD-SDI or 270 Mbps SD-SDI (asynchronous
operation available at other frequencies)
Connector / format LC single mode SFP
Conforms to SMPTE 297-2006
Outputs 1 to 4 per Channel
Controls
Indicators
Power OK (Green)
CPU OK (Green flashing)
Good Hardware OK (Green)
Warning SFP fit not as sold (Yellow), SFP warning active (Yellow flashing), OK (Off)
Error Hardware error (Red), SFP alarm active (Red flashing), OK (Off)
Input 1-8 SD-OK (Yellow), HD-OK (Green), 3G-OK (Blue), other-OK (White flashing)
Bypass (Rate colour flashing), Loss (Red)
RollCall Functions
Input 1-8 rate select 3G, HD, SD, other
Reclock bypass On/Off
Output 1-4 select Input 1-4
Output 5-8 select Input 5-8
Input status Present, Loss, Unknown, Unrouted, Data Rate
Laser disable On/Off
Logging Input 1-8 Type
Input 1-8 Bit Rate
Input 1-8 Present
Input 1-8 Loss
Output 1-8 laser bias
Output 1-8 laser power
Output 1-8 laser wavelength
Issue 1 Rev 2 © 2012 Snell Limited
Page 5

IQOTX80/81/82/83/84/99 www.snellgroup.com
Output Configuration
RollTrack controls On/Off, Index, Source, Address, Command, Status, Sending
RollTrack outputs Unused
Input 1-8 Present
Input 1-8 Rate Unknown
Input 1-8 Loss
Input 1-8 3G
Input 1-8 HD
Input 1-8 SD
Output 1-8 laser bias OK
Output 1-8 laser bias High
Output 1-8 laser bias Low
Output Configuration
Specifications
Electrical 3 Gbps SDI, SMPTE 424M,
1.5 Gbps HD-SDI, SMPTE 292M
270 Mbps SDI, SMPTE 259MC / DVB-ASI
Connector / format BNC/ 75 Ohm panel jack on standard Snell connector panel
Return loss >-15 dB (270 Mbps, 1.5 Gbps)
>-10 dB (3 Gbps)
Output jitter SD-SDI 0.2 UI (10 Hz) / 0.2 UI (1 kHz)
3G/HD-SDI 1.0 UI (10 Hz) / 0.2UI (100 kHz)
Module power 10.5 W max
(Depends on SFP fitted)
1310 nm Tx
Wavelength 1310 nm
Spectral width (FWHM) 1.5 nm (typ RMS)
Output power -2 dBm (typ), 0 dBm max
Extinction ratio >7.5:1 (typ)
Transmission distance 10 km max under worst conditions, up to 30 km max
1550 nm Tx
Wavelength 1550 nm
Spectral width (FWHM) 1 nm (max)
Output power 4 dBm max
Extinction ratio >7.5:1 (typ)
Transmission distance Up to 50 km max
CWDM wavelength Tx
Wavelength 1270 nm – 1410 nm and 1470 nm –1610 nm
Spectral width (FWHM) 1 nm (max)
Output power 2.5 dBm (typ), 5 dBm max
Extinction ratio >9:1 (typ)
Transmission distance Up to 50 km max
Issue 1 Rev 2 © 2012 Snell Limited
Page 6

IQOTX80/81/82/83/84/99 www.snellgroup.com
Connections
SDI Inputs IQOTX8_78-1A3 and IQOTX8_79-1A3
SDI inputs to the unit are made via 8 DIN 1.0/2/3 or HD BNC (75ohm) panel jack
connectors.
FIBER OUT 1
SER
IN
1
IQOTX8_
79-1A3
FIBER OUT 2
SER IN 2
86 3
4
75
1
2
86427531
IQOTX8_80-2A3
SDI inputs to the unit are made via BNC / 75ohm panel jack connectors.
8
8642
FIBER OUT 2
7531
FIBER OUT 1
1
SERIAL IN 2
IQOTX8_
80-2A3
7
2
4
3
SERIAL IN 1
5
6
Fiber Outputs
IQOTX8_78-1A3 and IQOTX8_79-1A3
Fiber outputs from the unit are made via 8 LC connectors.
FIBER OUT 1
SER
IN
1
IQOTX8_
79-1A3
FIBER OUT 2
SER IN 2
86 3
4
75
1
2
86427531
IQOTX8_80-2A3
Fiber outputs from the unit are made via 8 LC connectors.
8
8642
FIBER OUT 2
7531
FIBER OUT 1
1
SERIAL IN 2
IQOTX8_
80-2A3
7
2
4
3
SERIAL IN 1
5
6
Issue 1 Rev 2 © 2012 Snell Limited
Page 7

IQOTX80/81/82/83/84/99 www.snellgroup.com
Card Edge Controls
V+ and V- When illuminated these LED’s indicate that the positive and negative supplies
are present.
CPU This led will flash to indicate that the CPU is running.
Input Channel Status (Ch1 to Ch8)
Off Channel is not applicable to this product.
Yellow SD - re-clocker locked at 270 MHz, flashes when in RC-bypass
Green HD - re-clocker locked at 1.485/1.4835 GHz, flashes when in RC-bypass
Blue 3G - re-clocker locked at 2.97/2.967 GHz, flashes when in RC-bypass
White (flashing) Unknown rate detected, forcing RC-bypass. Input might actually be
un-routed with all rates selected in the dialog.
Red No signal present.
Red (flashing) Input detected, but rate is in error. This is as a result of the rate
selection logic on the RollCall dialogue, or the channel is un-routed and not all
rates are selected.
Error (Red) When illuminated indicates that SFPs are fitted incorrectly or missing (see
SFP Fit Errors and Warnings).
When flashing indicates that an SFP status alarm has been activated (e.g.
temperature or supply voltage) other than the Rx Power Alarm.
Warning (Yellow) Illuminates to indicate that the order in which the SFPs are fitted has changed
from the original documented fit (see SFP Fit Errors and Warnings).
Flashes to indicate that an SFP status warning has been activated (e.g.
temperature or supply voltage) other than the Rx Power Warning.
Good (Green) Illuminates to indicate all SFPs are fitted and functioning correctly.
Issue 1 Rev 2 © 2012 Snell Limited
Page 8

IQOTX80/81/82/83/84/99 www.snellgroup.com
Controlling the IQOTX80/81/82/83/84/99 from the RollCall
Control Panel
Unit Status
Information about the status of the unit is displayed in the Unit Status section on each RollCall
Control Panel screen. The default is the Summary.
The radio buttons in the Information Window are used to select what is displayed in Unit Status.
•Summary – shows a cryptic view of the channel input status,
the output routing and the mode selection. On the top two
lines it shows signals present on SDI inputs 1, 2 and 3. On the
bottom two lines it shows the selected Config with Routing and
Mode for the SDI →Fiber channels.
•SDI Inputs 1-4 – shows a more detailed view of SDI channel
input status; includes status field, bit rate and whether locked
(LOC) or bypassing the reclocker (BYP). A Uin the first field
indicates the input is not routed to an output and therefore its
bit rate cannot be measured. Err indicates that a signal has
been detected but its bit rate is not one of those selected for
that input.
•SDI Inputs 5-8 – as above but for SDI inputs 5-8.
•Output Status – shows the status for the Fiber outputs. On
the top two lines it shows that SDI I/Ps 1, 2 and 3 are routed
to Fiber O/Ps 1, 2 and 3, Fiber O/P 4 shows Ewhich means it
is muted (laser off) due to an input error, Config 1 is selected
and the Mode is Rules. The bottom two lines show that Fiber
O/Ps 5, 6, 7 and 8 are all muted due to input error, Config 1is
selected and the mode is Manual. Minstead of Ein the
routing status indicates muted using the channel’s Laser Off control. An X means a Fiber
Transmitter is missing or a Fiber Receiver is fitted by mistake. A ‘space’ in this position means
that the product does not require a Fiber Transmitter to be fitted for that channel (applies to
IQOTX99)
•Fiber Status – shows the status of the SFP fiber transmitters.
LOW or HIGH means low or high Power which could be an
early indication of a fault. An additional status indicates when
the laser is turned OFF either due to an input error or by
manual control. NONE indicates that a Fiber Transmitter is
missing or a Receiver fitted by mistake. ‘Blank’ status
indicates that the product does require a Fiber Transmitter to be fitted for that channel (applies
to IQOTX99).
Issue 1 Rev 2 © 2012 Snell Limited
Page 9

IQOTX80/81/82/83/84/99 www.snellgroup.com
System-Setup Screen
The Setup screen displays basic information about the unit. Use the functions on the screen to
restart the unit, return all settings to their factory defaults, and to change the names of the inputs.
Product: The top left part of the screen shows the various versions, options, identifiers, etc.,
associated with the product’s hardware, firmware and software and also provides a means of
setting controls to defaults or restarting the unit. Note that the Firmware release is in two parts, the
left-hand being for the Administration module FPGA and the right-hand part being for the I/O
module FPGA.
To restart the unit, simulating a power-up/power-down cycle, click Restart.
To reset all of the unit’s settings to their factory defaults, click Factory Defaults.
•NOTE: this also clears all of the saved memory settings.
To reset all of the unit’s settings to their factory defaults, leaving user memories intact, click
Default Settings.
SFP Details: The top right part of the screen shows the details of the SFP transmitters and
receivers fitted. The Status column indicates whether the SFPs fitted are correct for the particular
product. The difference between the TX80, 81, 82, 83, 84 products is purely the wavelengths of the
transmitters fitted. NOTE: SFP details are read only at start up so the unit must be restarted if an
SFP is changed.
Input 1-8 Name: The bottom half of the screen has entry fields for 8 Input Names. These are the
input names displayed in logging. To change a name, type the name in the text field and click S.
To return the name to its factory default, click P.
Issue 1 Rev 2 © 2012 Snell Limited
Page 10

IQOTX80/81/82/83/84/99 www.snellgroup.com
SDI-Inputs 1-4 Screen
The SDI-Inputs 1-4 screen enables the:
•Inputs and outputs to be configured.
•The configuration mode to be used selected.
•The rules governing configuration use to be specified.
SDI Inputs 1-4
•SD/DVB-ASI (270 Mb):
•HD (1.5Gb):
•3G (3 Gb):
•Others: Check one or more of these checkboxes to determine which types of signal are
deemed to be valid for a particular input. If a signal is present on the input but not selected as
valid, its status will be Error. Others is for signals of type other than the above. Also, because
the reclockers are on the outputs, if an input is detected as present but not routed to an output,
its bit rate will be unknown and its status would be Error unless this box was checked.
•Reclock Bypass: Check this to bypass the reclocker, which is on the output signal.
•The Channel Ident, I/P Name, I/P State and I/P Rate are shown for each channel.
Issue 1 Rev 2 © 2012 Snell Limited
Page 11

IQOTX80/81/82/83/84/99 www.snellgroup.com
Config 1 and Config 2
Use the radio buttons to specify the SDI input for each of the four Fiber outputs.
Select Laser Off On Inp Err to apply a mute to the output if there is no valid signal on its input as
defined by the checkboxes; includes signal lost. Select Laser Off to manually apply a mute to the
output.
Swap Config 1 <> 2
Click Swap Config to swap the Config 1 setup with the Config 2 setup.
Mode
These controls specify which configuration is to be used, or whether the configuration choice
should be made by the rules configured in the Rules section.
Primary & Secondary Inputs
Use the radio buttons to select which input channels are used in the Rules section.
Rules
These controls specify which configuration is to be used if the Use Rules option is selected in the
Mode section. The option enables the configuration to be switched automatically if an input fails or
changes to an inappropriate rate.
•Config 1 On Primary Input OK: this selection will use Config 1 if the Primary Input is
receiving a valid input signal.
•Config 2 On Primary Input Err: this selection will switch to Config 2 if the Primary Input 1
is not receiving a valid input signal.
•Config 1 On Secondary Input Err: this selection will switch to Config 1 if the Secondary
Input is not receiving a valid input signal.
•Primary Input Delay for Rules
•OK Timer: this specifies the time that the Primary Input must be receiving a valid signal in
order to be considered ‘OK’ by any rules.
•Err Timer: this specifies the time that Primary Input must be receiving an invalid (or lost)
signal in order to be considered in error by any rules.
•Secondary Input Delay for Rules
•Err Timer: this specifies the time that the Secondary Input must be receiving an invalid (or
lost) signal in order to be considered in error by any rules.
NOTE: Because the reclockers that measure the rate of the signals are on the outputs rather than
the inputs of the routing cross-points, an input must be routed in order for its rate to be determined.
Therefore, depending on which Rules are selected, the Primary and/or the Secondary input
channels have to be routed in one or both of the two configurations in order for the rule to work…
•Config 1 On Primary Input OK: Because this is a rule for switching from Config 2 back to
Config 1, the Primary must be routed in Config 2.
•Config 2 On Primary Input Err: Because this is a rule for switching from Config 1 to
Config 2, the Primary must be routed in Config 1.
•Config 1 On Secondary Input Err: Because this is a rule for switching back from Config 2
back to Config 1, the Secondary must be routed in Config 2. Also, to prevent the
configuration switching backwards and forwards between configurations, it must also be
routed in Config 1.
Issue 1 Rev 2 © 2012 Snell Limited
Page 12

IQOTX80/81/82/83/84/99 www.snellgroup.com
SDI-Inputs 5-8 Screen
The SDI-Inputs 5-8 screen enables the:
•Inputs and outputs to be configured.
•The configuration mode to be used selected.
•The rules governing configuration use to be specified.
SDI Inputs 5-8
•SD/DVB-ASI (270 Mb):
•HD (1.5Gb):
•3G (3 Gb):
•Others: Check one or more of these checkboxes to determine which types of signal are
deemed to be valid for a particular input. If a signal is present on the input but not selected as
valid, its status will be Error. Others is for signals of type other than the above. Also, because
the reclockers are on the outputs, if an input is detected as present but not routed to an output,
its bit rate will be unknown and its status would be Error unless this box was checked.
•Reclock Bypass: Check this to bypass the reclocker, which is on the output signal.
•The Channel Ident, I/P Name, I/P State and I/P Rate are shown for each channel.
Issue 1 Rev 2 © 2012 Snell Limited
Page 13

IQOTX80/81/82/83/84/99 www.snellgroup.com
Config 1 and Config 2
Use the radio buttons to specify the SDI input for each of the four Fiber outputs.
Select Laser Off On Inp Err to apply a mute to the output if there is no valid signal on its input as
defined by the checkboxes; includes signal lost. Select Laser Off to manually apply a mute to the
output.
Swap Config 1 <> 2
Click Swap Config to swap the Config 1 setup with the Config 2 setup.
Mode
These controls specify which configuration is to be used, or whether the configuration choice
should be made by the rules configured in the Rules section.
Primary & Secondary Inputs
Use the radio buttons to select which input channels are used in the Rules section.
Rules
These controls specify which configuration is to be used if the Use Rules option is selected in the
Mode section. The option enables the configuration to be switched automatically if an input fails or
changes to an inappropriate rate.
•Config 1 On Primary Input OK: this selection will use Config 1 if the Primary Input is
receiving a valid input signal.
•Config 2 On Primary Input Err: this selection will switch to Config 2 if the Primary Input 1
is not receiving a valid input signal.
•Config 1 On Secondary Input Err: this selection will switch to Config 1 if the Secondary
Input is not receiving a valid input signal.
Primary Input Delay for Rules
•OK Timer: this specifies the time that the Primary Input must be receiving a valid signal in
order to be considered ‘OK’ by any rules.
•Err Timer: this specifies the time that Primary Input must be receiving an invalid (or lost)
signal in order to be considered in error by any rules.
Secondary Input Delay for Rules
•Err Timer: this specifies the time that the Secondary Input must be receiving an invalid (or
lost) signal in order to be considered in error by any rules.
NOTE: Because the reclockers that measure the rate of the signals are on the outputs rather than
the inputs of the routing cross-points, an input must be routed in order for its rate to be determined.
Therefore, depending on which Rules are selected, the Primary and/or the Secondary input
channels have to be routed in one or both of the two configurations in order for the rule to work…
•Config 1 On Primary Input OK: Because this is a rule for switching from Config 2 back to
Config 1, the Primary must be routed in Config 2.
•Config 2 On Primary Input Err: Because this is a rule for switching from Config 1 to
Config 2, the Primary must be routed in Config 1.
•Config 1 On Secondary Input Err: Because this is a rule for switching back from Config 2
back to Config 1, the Secondary must be routed in Config 2. Also, to prevent the
configuration switching backwards and forwards between configurations, it must also be
routed in Config 1.
Issue 1 Rev 2 © 2012 Snell Limited
Page 14

IQOTX80/81/82/83/84/99 www.snellgroup.com
Output-Fiber Screen
The Output-Fiber screen shows status associated with the fiber transmitters.
Fiber Optic Tx 1-8
Shows the fiber transmitter status for each channel. SFP Status relates to the product SPF fit.
Issue 1 Rev 2 © 2012 Snell Limited
Page 15

IQOTX80/81/82/83/84/99 www.snellgroup.com
System-Memory 1-16 Screen
Use the Memory function to save up to 16 setups to be recalled later. Default memory names can
be changed to provide more meaningful descriptions.
To save settings:
•In the Save Memory column, select a memory location, and then click Save. The current
settings are saved and the memory appears in the Recall Memory column.
To change a memory name:
•In the Save Memory Name field, type the new memory name, and then click S. To return
the memory to its default value, click the preset button (P).
Use the Recall Memory function to recall the settings saved in a memory location. Last Recalled
Memory displays the most recently recalled memory. If a control is changed after a setup has
been recalled, Last Recalled Memory will display an asterisk (*) beside the memory name.
To recall a memory:
•In the Recall Memory column, select the memory to recall. The recalled set-tings will be
applied and the memory name will appear in the Last Recalled Memory section.
Issue 1 Rev 2 © 2012 Snell Limited
Page 16

IQOTX80/81/82/83/84/99 www.snellgroup.com
Logging
Logged parameters are made available to logging devices connected to the RollCall Network.
They are also displayed on a number of RollCall Screens where they can selectively be switched
off to prevent them being logged externally.
Issue 1 Rev 2 © 2012 Snell Limited
Page 17

IQOTX80/81/82/83/84/99 www.snellgroup.com
Issue 1 Rev 2 © 2012 Snell Limited
Page 18

IQOTX80/81/82/83/84/99 www.snellgroup.com
Issue 1 Rev 2 © 2012 Snell Limited
Page 19

IQOTX80/81/82/83/84/99 www.snellgroup.com
Issue 1 Rev 2 © 2012 Snell Limited
Page 20
This manual suits for next models
5
Table of contents
Other Snell Transmitter manuals