TOA TS-910 ตัวควบคุม INFRARED CONFERENCE UNIT
Depending on production date, 2 versions of Infrared conference units (TS-901/902/801/802) that differ in 
specification are used in the Infrared Conference system, even though they have identical model numbers. 
Since setting methods and other points may differ in part between the 2 versions (having the same model 
number), please keep the following instructions in mind when using the Conference units.
1. Identifying Units Based on TOA Logo Position
[If the TOA logo is located on the right] [If the TOA logo is located on the left]
TS-910 Series instruction manual descriptions are 
not applicable in terms of the operations described in 
the following sections. 
Top view of the Conference unit
Please use the unit as described in the TS-910 
Series instruction manual. 
Top view of the Conference unit
2. Setup and Operation of Units Having the TOA Logo on the Right
Units with right-side logos differ from units with left-side logos in the following specific areas:
2.1. Unit number settings
The usable unit number is limited.
Using the Unit address number setting switch located at the bottom 
of the unit, set the unit number within the range shown in the following 
table. The unit will not operate if its assigned number is not within the 
valid range. 
Model No. Usable Unit Number Range
TS-901 and TS-902 01 – 96 (00 when used only for monitoring)
TS-801 and TS-802 01 – 64 (00 when used only for monitoring)
2.2. Fixed PTT priority speech operation (TS-901 and TS-801 only)
These models have no Priority speech key operation setting switch. 
The Priority speech key is physically limited to PTT operation, 
therefore priority speech can only be enabled while the Priority 
speech key is held down.
2.3. Monitor volume adjustment
The Monitor volume control is only located on the right side of the 
base of the unit. 
The sound output of headphone terminals located on both sides of 
the unit and the monitor speaker can be simultaneously adjusted 
with this Monitor volume control.