Partyline: Can I talk out on all channels of the MS-704 main station via one button push?
The answer is yes, the user can link all four party-line channels together via one button push.
A pushbutton allows the connecting of intercom channels B, C, and D to channel A. The link pushbutton is latching in action. The link button illuminates amber when all channels are linked together. In the latched position, the entire station operates as one party line. Talk and listen buttons are non-functional on channels B, C, and D when they are linked to channel A.
The link function in the MS-704 connects the four party lines together. In doing so, it also removes the terminations from channels B, C, and D such that the new party line on channel A has only one termination when link is activated. If there is more than one MS-704 in a system, the link function should only be only be used at the station where the terminations are set on.