EMR User's Guide
High Density Modular Audio Router (AES, Analog, MADI, TimeCode, Data)
Page 66 Revision 1.8 COMPONENT OVERVIEW
Using the Learn Modes: The learn modes can be instigated from either VLPro or the serial menu; the
following description is when the serial menu is being used. The user has the option to learn a single port
or multiple port configurations using either of the two modes described earlier. Upon successful detection
of the ports configuration the user can accept the setting as a manual setting i.e. hard code the port as a
Controller or Slave; enter‘s’ to allow the setting to be used in the Sony mode (senses the state of the Sony
pin and port configuration together and configures the Sony operational mode based upon the sensed
conditions); or enter ‘o’ to configure the port to use the ‘order of takes direction control’ mode based upon
the sensed conditions.
2.2.11.2. Special Modes
Normally the user will just hard configure the port as a Controller or a Slave depending on how the sub
ports are connected to the TX and Rx. However, there are times where the port connections swap in use,
e.g. when EMR-PR48-A is in a system that requires machine to machine (VTR) dubbing. EMR-PR48-A
provides the following modes:
Sony Mode: This mode is only supported when the standard is set to RS422. In this mode, the status of
the external devices Sony pin (pin 5 on a 9 way ‘D’ type connector) is used to control the ports mode, i.e.
in Sony 0 = Controller, if the Sony pin is low EMR-PR48-A port will be configured as a controller, if the pin
is high then it will be configured as a slave.
Note that some VTR’s such as the Sony DVW-A500P and the Sony DNW-A75 do not support pin 5 fully
and therefore cannot be supported using the Sony modes on the EMR-PR48-A. Also note that other
VTR’s such as the Sony SRW-5500 and SRW-5800 swap the Tx/Rx pairs momentarily when the ‘Player’
button is pressed and require the Slave VTR to respond to latch the TX/RX swap and allow the controlling
VTR to control the slave device.
Default & Non-Default Mode: The EMR-PR48-A can be globally configured for one of two modes.
Default mode and Non-Default mode. In default mode: For instance if the user wants to route port 4 to 5,
user would just set the route “4” then “5” in the route menu to get a two-way traffic. But in Non-Default
mode customer would need to set two routes “4” to “5” and then “5” to “4” to get a two-way traffic. User
won’t be able to do the normal routing when the router is in “Non-Default mode”.
Note: It will affect all the ports on the card when the card config is changed to Non-
Default Mode from Default Mode
Auto 3 Detection Mode: This mode is provided to support the problematic devices mentioned above. It
continuously monitors the ports status and automatically detects when an external device swaps its Tx
and Rx connections and reconfigures the EMR-PR48-A ports accordingly. This mode should be used only
if the Sony mode does not function. This mode supports the Sony DVW-A500P, the Sony DNW-A75, the
Sony SRW-5500 and the SRW-5800 devices.
Note that this mode causes a small interruption to the transmitted data unless data is flowing on the link,
which is true for all VTRs. Therefore caution must be observed when using it on links that do not have
continuous data flowing. The Auto 3 timeout is defaulted to correctly support VTR operation.
Note: Ensure that the GND reference connection between the external device and the
EMR-PR48-A is made.
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