DXD/LTC User Manual (rev 2.10)
Page 3
1. Introduction
The DXD/LTC option is available for both DXD models, the DXD16 and the DXD-8.
This firmware can generate 2 separate streams of time code simultaneously at different formats. Each stream can be set as a
Time Of Day time code generator or as a simple Run/Stop/Cue generator locked to the currently selected reference.
The DXD/LTC transmits SMPTE 2059-2 "Synchronization Metadata" Management Messages on any PTP port where the SMPTE
ST2059 Profile has been enabled.
2. Installation
Before using the DXD/LTC, be sure to update your DXD unit with the latest firmware, available on the Brainstorm website. The
DXD/LTC will not operate with firmware older than 2.10.
When you purchased the DXD/LTC option, you received a unique authorization key, a series of 4 numbers, separated by
periods. This key is only valid for the model and serial number used when you placed the order.
Enter this key in the FEATURE KEYS menu (10.5 on the DXD-8 and 11.5 on the DXD-16), under the main UTILITY menu. On the
DXD-8, be sure to enter it in the TIME CODE line.
After entering the authorization key, a message will ask you to confirm setting the feature key now, followed by another
message confirming that the feature key has been set. This authorization procedure only needs to happen once, even with
subsequent firmware updates. Keep that key handy in case you accidentally change it in the Feature Key menu.
Once the Feature Key has been properly entered, several new menus will become accessible such as the TIME CODE menus.
Other menus will also be affected.
3. BNC Outputs Menus
3.1 SIGNAL
The BNC Outputs menus have a new choice for SIGNAL: Time Code.
3.2 SOURCE
After selecting Time Code as the type of signal for this group of outputs, either of the 2 Time
Code Generators can be selected: TCG1 or TCG2
3.3 RISE/FALL TIME
Choices are available for the output waveform with rise and fall times ranging from 1µsec (square wave) to 50µsec (EBU).
The default value is 40 µsec (SMPTE).
NOTE
On the DXD-16, 2 balanced outputs are available on the DB-25 connector (see appendix C), regardless of how the BNC
outputs are configured. The BNC connectors can be used for unbalanced signal when additional outputs are required.
On the DXD-8, only unbalanced BNC outputs are available.
