The V-Series 1RU 12 lever key display panel with 4-pin XLR or 5-pin XLR male headset connector. The key-panel has 12 lever keys, including one reply/answer-back key and 8 shift pages. Each key has associated up/down audio level control buttons. The panel menu provides user set-ups and assignment options. The rear panel has audio I/O and GPI/O connections. The product is also available as pushbutton and rotary key-panel types. Comes with factory fitted AES adapter card for Co-axial cable connection or AES3 digital audio over CAT5.