11e Power switch/ Volume controlTurn clockwise to switch ON the transceiver. Rotate toadjust the volume. Turn counterclockwise fully to switchOFF the transceiver.r Transmit/ Busy/ Call indicatorThis LED lights red during transmission, green whilereceiving a call, and orange when receiving an encoded call(i.e. 5-tone, DTMF signaling, etc.).t Auxiliary (orange) keyPress to activate its programmable function {page 14}.y Safety CatchLock this catch to avoid accidentally pressing the releaselatch and removing the battery pack {page 7}.u Release LatchPress the release latch to unlock and remove the batterypack {page 7}.i Side 1 keyPress to activate its programmable function {page 14}.o PTT (Push-To-Talk) switchPress this switch, then speak into the microphone to call astation.!0 Side 2 keyPress to activate its programmable function {page 14}.!1 S, A, keysPress to activate their programmable functions {page 14}.!2 DTMF keypadPress the keys on the keypad to make DTMF calls{page 30} or to activate their programmable functions {page14}.!3 Universal connectorConnect a speaker/ microphone or headset here {page 9}.Otherwise, keep the supplied cap in place.