Zaxcom ERX2TCD User manual

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USER MANUAL
Published December 2018
Firmware Version 2.11
ERX2TCD
ZaxNet Audio &Time Code Receiver

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KNOWING YOUR ERX ................................................................................................................................... 3
ERX CONTROL KEYS ....................................................................................................................................................4
ERX MAIN DISPLAY ....................................................................................................................................................4
ERXRECEIVE ANTENNAS ............................................................................................................................................. 5
COLORED KNOBS ........................................................................................................................................................5
EXTENDED MENU.......................................................................................................................................... 6
ACCESSING AND NAVIGATING THE EXTENDED MENU .........................................................................................................6
EXITING THE EXTENDED MENU ...................................................................................................................................... 6
MAXIMUM VOLUME SET .............................................................................................................................................6
TIME CODE FRAME RATE SET .......................................................................................................................................6
AUTO FRAME RATE ENABLE .........................................................................................................................................6
IFB RECEIVE FREQUENCY SET .......................................................................................................................................7
AUDIO DELAY SET.......................................................................................................................................................7
SOFTWARE UPDATE....................................................................................................................................................7
AUTO SCAN ENABLE....................................................................................................................................................8
GROUP ID SET ...........................................................................................................................................................8
IFB VOTING ENABLE ...................................................................................................................................................8
TIME CODE OUTPUT ENABLE ........................................................................................................................................ 9
TIME CODE DELAY SET ................................................................................................................................................9
TIME CODE JAM MUTE................................................................................................................................................9
MANUAL TIME CODE SET...........................................................................................................................................10
TIME CODE AUTO CALIBRATE ENABLE ..........................................................................................................................10
TIME CODE CALIBRATION VALUE .................................................................................................................................11
LED BRIGHTNESS SET ................................................................................................................................................11
1K NOTCH FILTER ENABLE..........................................................................................................................................11
1K NOTCH FILTER FREQUENCY ADJUST ........................................................................................................................11
ZAXNET OUTPUT ENABLE...........................................................................................................................................12
TIME CODE OUTPUT LEVEL ADJUST .............................................................................................................................12
VOLUME KNOB MODE...............................................................................................................................................12
ALTERNATIVE IFB FREQUENCY SET ..............................................................................................................................13
Listening to the alternative frequencies.......................................................................................................... 13
ENCRYPTION CODE SET..............................................................................................................................................13
Setting the encryption code.............................................................................................................................13
ERX QUICK START GUIDE - INTERFACING WITH NOMAD................................................................................14
INTERFACING THE ERX WITH A NOMAD........................................................................................................................14
FIRMWARE ..................................................................................................................................................15
UPDATING ERX FIRMWARE -USING AN IFB 100 /200...................................................................................................15
UPDATING ERX FIRMWARE -USING AN TRX TRANSMITTER..............................................................................................16
ERX SPECIFICATIONS ....................................................................................................................................17
PRODUCT SUPPORT .....................................................................................................................................18
ZAXCOM WARRANTY POLICY AND LIMITATIONS...........................................................................................19

Zaxcom ERX3TCD ERX Layout
Page 3
Knowing your ERX
1. OLED Screen
2. INC Key
3. Menu key
4. DEC Key
5. Time Code key
6. Battery Compartment
7. 1/8” Locking Headphone Jack
8. Power Switch
9. Signal / Power LED
10. Volume Knob
1
2
4
6
3
5
7 8 9 10

Zaxcom ERX3TCD ERX Layout
Page 4
ERX Control Keys
•MENU - Holding the menu key while powering up will open the extended menu.
When in extended menu the menu key is used to advance to the next menu item.
When alternative IFB frequency is enabled the menu key will access the alternative frequencies.
•INC (Up Arrow) - Used to increase the parameter of a menu item.
In the home screen the INC key is used to toggle between time code, scene, take and user bits. The INC key is
also used to toggle through the alternative IFB frequency.
•DEC (Down Arrow) – Used to decrease the parameter of a menu item.
In the home screen the DEC key used to toggle between time code, scene, take and user bits. The DEC key is
also used to toggle through the alternative IFB frequency.
•TIME CODE - Alternately freezes/unfreezes the displayed time code.
When in the home screen pressing the time code key three times quickly, will access the extended menu.
ERX Main Display
The main screen of the ERX will display timecode, battery level and receive
audio level.
If the ERX is receiving signal from a Zaxcom recorder the scene, take and
user-bits can be displayed by pressing and holding the INC or DEC key.
01:02:03:04
S: (SCENE INFO)
T: (TAKE INFO)
UB 00:00:00:00

Zaxcom ERX3TCD ERX Layout
Page 5
ERX Receive Antennas
The ERX has four receive antennas located behind the faceplate as indicated below. Please note if placed in a
pocket, ERX should be facing out. To ensure better performance don’t place anything in front of these areas that
could block reception
Colored Knobs
Optional colored knobs are available for the ERX; please contact your dealer for details.

Zaxcom ERX2TCD Extended Menu
Page 6
Extended Menu
Accessing and navigating the extended menu
•Press and hold the MENU key while powering up the ERX or press the time code key 3 times from the home
screen.
•Pressing the MENU key will advance to the next menu item.
•Press and hold the menu key will navigate back to the top of the extended menu.
Exiting the extended menu
•Cycle the power.
Or
•Hold down the MENU key to get to the extended menu home screen then press the INC key.
Maximum Volume Set
The max volume menu sets the maximum headphone output volume of the ERX.
If the volume mode menu is set to FIXED the ERX output level will be the level that is set in this menu and will
not be affected by the headphone knob. This can be useful to prevent an accidental change to the output level
of an ERX that is feeding audio to a camera.
Time Code Frame Rate Set
The time code frame rate menu allows the time code frame-rate of the ERX’s internal time code reader /
generator to be manually set. The ERX can support all standard time code frame rates.
The frame rate options are: 23.98, 24, 25, 29.97DF, 29.97DF, 30 DF, 30 NDF
Auto Frame Rate Enable
Auto frame rate allows the ERX to adjust its time code frame rate to match the incoming frame rate of the
transmitter feeding it.
•ON - The ERX will change time code frame rate automatically to match the incoming fame rate.
•OFF - The ERX will not automatically change its frame rate, the frame rate will need to be adjusted in the time
code frame rate set menu.
TC FRAME RATE:
23.98
AUTO FRAME RATE:
ON (23.98)
MAX VOLUME: 23dB

Zaxcom ERX3TCD Extended Menu
Page 7
IFB Receive Frequency Set
The IFB receive menu is where the ZaxNet receive frequency is set.
To manually adjust the receive frequency press the INC or DEC keys to match the transmit frequency.
When a valid signal is received, RX is displayed on the right side of the frequency. The second line displays the
signal strength and two vertical signal strength indicators will be displayed.
Pressing the TIME CODE key while on this page the ERX will cycle through the following:
•FREQ - Overall signal strength of all antennas are displayed.
•FRONT- Signal strength of only the front antennas are displayed.
•SIDE - Signal strength of only the side antennas are displayed.
When using auto scan or when using the alternate frequency option the word “signal” on the bottom line of this
menu will show the actual frequency that the ERX is receiving on.
Audio Delay Set
The audio delay menu sets a variable delay to the output audio. A delay is useful if the ERX is being used for
personal monitoring and there is a video processing delay to the monitors - so engaging the delay will delay the
audio to match the video. The audio delay can be adjusted from 5MS to 400MS in 5MS increments.
Software Update
This menu is used to initiate the firmware update process.
After pressing the INC key 5 times, the ERX will start to look for firmware being transmitted from a compatible
transmitter. Please see the firmware section at the end of this manual for more information on how to update
the ERX.
FREQ: 2.403 RX
SIGNAL: A01 B01
AUDIO DELAY:
OFF
PRESS UP 5X TO
UPDATE SOFTWARE

Zaxcom ERX3TCD Extended Menu
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Auto Scan Enable
When auto scan is enabled the ERX will automatically search for, and lock to, a valid ZaxNet transmit frequency.
Therefore if the transmitters’ frequency is changed, the ERX will automatically search for the new frequency so
the ERX doesn’t need to be manually set to the new frequency. Please note if the ERX goes out of range auto
scan will assume that the frequency was changed and will start scanning for the new frequency, but when the
ERX comes back into range of the transmitter it will lock up to the correct frequency
Group ID Set
Group ID allows the ERX to be set to a group. Setting a ZaxNet transmitter to a group allows audio, time code
and data to be sent to just the ERX receivers with the same group ID. So for an ERX to receive a ZaxNet signal its
group code needs to match the group code set on the transmitter.
So for example a transmitter set to group 1 will send to all group 1 ERX receivers and a group 2 transmitter will
send to all group 2 ERX receivers. Group codes can be set from 1 to 99
IFB Voting Enable
IFB voting lets the ERX choose and switch to the stronger signal from two different ZaxNet transmitters. One
purpose of this is, on a large set, a second transmitter can be placed at a different location and the ERX will
automatically choose the stronger signal. To use the IFB voting just set the second transmitting frequency a
minimum of 2MHz higher than the first unit. Then set the frequency in this menu to match the frequency on
the second IFB transmitter.
AUTO SCAN:
ON
REMOTE CONTROL
GROUP ID =1
IFB VOTING:
NORMAL (OFF)

Zaxcom ERX3TCD Extended Menu
Page 9
Time Code Output Enable
The ERX can output time code through either side of the headphone jack. When sending time code to the
headphone jack, the time code will override the audio to that selected output. The ERX can be configured to
send audio only, time code only or time code and audio simultaneously. Adjusting the settings in this menu will
allow the ERX to act as an audio monitor, a time code device or both. The later allows for the ERX to be
mounted on a camera and feed the camera both audio and time code simultaneously. The output cable should
be wired to match the time code / audio routing set in this menu.
•OFF -Time code output is disabled and only audio will be outputted from the headphone jack.
•ON: OUT BOTH -Outputs only time code to both left and right out of the headphone jack.
•ON: OUT RIGHT - Outputs time code to the right side and audio to the left side of the headphone jack.
•ON: OUT LEFT - Outputs time code to the left side and audio to the right side of the headphone jack.
Time Code Delay Set
The time code delay menu allows the time code out of the ERX to be advanced or delayed to create a time code
offset. The time code adjustments can be set from -50 frames to +50 frames in 0.5 frame increments.
Time Code Jam Mute
The time code mute time menu sets how long the time code output will be muted when the time code is being
jammed, or if the time code changes. When this is set to on, any value other than 0MS, the time code output
will mute for the duration selected whenever the ERX sees a jump in time code of 2 frames or more. This
simulates removing the time code completely from a device and plugging it back in so that the receiving device
recognizes that there is new time code. This was added to fix a bug in some older RED camera software
versions.
Adjustments can be set from 500MS to 2000MS in 500MS increments.
Please note that if using a Red camera the time code jam mute will likely need to be set to 1000 milliseconds.
TIMECODE OUTPUT
OFF
TCJAM MUTE TIME:
0MS (DEFAULT)
TC DELAY
0 (NORMAL)

Zaxcom ERX3TCD Extended Menu
Page 10
Manual Time Code Set
If an ERX is not receiving time code from a ZaxNet time code source the time code generator in the ERX can
manually be set from this menu.
To manually enter time code
•Turn off any ZaxNet time code source that will be feeding the ERX.
•Adjust the hour by using the INC and DEC keys.
•Press the time code key to advance the >to the minutes
•Adjust the minutes by using the INC and DEC keys.
•Press the time code key to advance the >to JAM and press the INC key to jam the ERXs time code generator.
•Please note the seconds and frames will automatically start at 00.
Time Code Auto Calibrate Enable
Auto calibration will calibrate the time code generator in each individual ERX to the time code that is feeding
the ERX. So when the ERX is out of range of the ZaxNet time code source that is feeding it for an extended
period of time the ERX will maintain sync with less than 1 frame drift over 10 hours. Please note the even
when auto calibration is turned on the ERX will still constantly update its time code via ZaxNet, when in
range of the transmitter, and not rely on its internal time code generator.
Auto calibration procedure
1. Turn on auto calibration.
2. Make sure the frame rate on the ERX and the time code source match, or enable auto frame rate on the
ERX.
3. Power cycle the ERX.
4. Send the ERX (or multiple ERXs) undisrupted time code via ZaxNet from a Nomad, IFB 100/200 or
TRX900CL.
5. After approximately 11 minutes (1 minute to warm up and 10 minutes to read and sync time code) the ERX
will mathematically compensate for the difference between the two and will store that offset in its ROM.
6. After the ERX has calibrated to the time code source auto calibration can be turned off so the ERX will not
try to recalibrate every time it is rebooted.
Please note that if there is spotty, or no ZaxNet signal after the ERX boots up it may not calibrate properly.
Also note when auto calibration is turned on the ERX will calibrate itself after the first 11 minutes after it boots
up and will not recalibrate again until it is rebooted.
TC AUTO CAL:
ON
TC TIME ENTRY:
>H 00 M00 JAM