Yamaha NetworkAmp Manager Owners Manual

Using COM MIDI Modes


Other Functions

NetworkAmp Manager—Owner’s Manual

Using COM & MIDI Modes

CobraNet’s Serial Bridge feature allows serial data to be transmitted over the network. Nor-
mally, the ACU16-C and NHB32-C use the Serial Bridge to transmit amp control data. 
However, it can be used to transmit MIDI data (Program Change and Control Change) or 
AD824 head amp control data between any two NHB32-Cs on the network.

The Serial Bridge cannot carry Amp Control, MIDI, and AD824 data simultaneously. While 
MIDI mode is active, Amp Control data is not transmitted and only communications 
between the MIDI ports of the two specified NHB32-Cs takes place. Likewise, while COM 
mode is active, only communications between the COM ports of the two specified 
NHB32-Cs takes place.

Hookup examples featuring MIDI and COM modes are provided in the printed 
ACU16-C/NHB32-C Owner’s Manual.


To use MIDI or COM mode, choose COM/MIDI Mode from the Option menu.

The COM/MIDI Mode dialog box shown below appears.


Use the pop-up menus to select two NHB32-Cs on the network.

If both NHB32-Cs are online, the COM and MIDI buttons become available.


Click COM to engage COM mode, click MIDI to engage MIDI mode.

The selected mode is activated and all other NetworkAmp Manager functions are inactive. 
The COM/MIDI Mode dialog box remains open while COM or MIDI mode is active.


To cancel COM or MIDI mode, click Deactivate COM/MIDI mode.

Click Disconnect from network to disconnect from the network without cancelling the 
COM or MIDI mode.


Click Close to close the COM/MIDI Mode dialog box.

If the Close button is unavailable, cancel COM or MIDI mode, or disconnect from the net-

If you are running NetworkAmp Manager on several PCs, while COM or MIDI mode is 
active, the COM/MIDI Mode dialog box appears on all PCs and all control and monitoring 
functions are disabled. COM or MIDI mode can be cancelled from any PC.