Question: When connecting Tempest to a standard RTS PL system(which carries both channels on a single XLR-3 )Should the I only connect 1 RTS-XLR cable (whichis caring both PL channels) to the Tempest PL A connector
Will the Tempest then automatically putRTS –channel 1 onto tempest channel ARTS –channel 2 onto tempest channel B
This assumes that we havea)    Set theslider switch on the tempest front panel to RTS modeb)    Enabled bothChannel A and B to be on via the Tempest front panel
Answer: For 2-Wire RTS Users:  RTS TW (2-Wire) systems support two intercom channels on a single XLR cable. When connecting an RTS TW system, only one cable is required for two intercom channels. When set to RTS mode, both of the 3-PIN XLR connectors (2 male and 2 female) for channels A&B and C&D are paralleled together. 
If a RTS (2-wire) cable is connected to the XLR channel A on the Tempest system then the following is true RTS intercom channel 1 is placed on Tempest intercom channel A, and RTS channel 2 is placed on Tempest intercom channel B
If a RTS (2-wire) cable is connected to the XLR channel C on the Tempest system then the following is true RTS intercom channel 1 is placed on Tempest intercom channel C and RTS channel 2 is placed on Tempest intercom channel D.