AA30-310, EXPANSION PANEL FOR 380 AUDIO PANEL. ADD'S SUPPORT FOR 4EA ADDITIONAL TRANSCEIVERS. -310 VARIANT DOES NOT INCLUDE A FACEPLATE. FACEPLATE MUST BE ORDEREE SEPARATELY.
AA30-310, EXPANSION PANEL FOR 380 AUDIO PANEL. ADD'S SUPPORT FOR 4EA ADDITIONAL TRANSCEIVERS. -310 VARIANT DOES NOT INCLUDE A FACEPLATE. FACEPLATE MUST BE ORDEREE SEPARATELY.