- Turn all the way CW to select a menu item or increase a parameter value.
- Turn all the way CCW to select a menu item or decrease a parameter value.
4 Sticker: Indicates the receiver frequency version.
5 LED ring (green/red): If one or more warning functions are activated (see section 4.3), the LED ring will be lit red
when a critical condition occurs. As long as all parameters are within their normal ranges, the LED ring is lit green.
6 DC ONLY: Locking DC input for connecting an optional power supply.
7 ANTENNA A/B: 2 BNC sockets for connecting the supplied UHF antennas (7a) or an optional remote antenna sys-
tem.
The ANTENNA sockets also allow the receiver to be powered by an optional PS 4000 W antenna splitter as an al-
ternative to a local power supply.
• For details on antennas, accessories, and frequency planning support visit www.akg.com.
8 BALANCED: Balanced 3-pin XLR audio output for connecting to, e.g., a microphone input on the mixing console.
9 UNBALANCED: Unbalanced 1/4" TS audio output jack for connecting to, e.g., a guitar amplifier.
10 Output level switch: Slide switch for matching the BALANCED output level to the input gain of the equipment con-
nected to the receiver. The switch has three positions:
-30 dB: for high-sensitivity microphone level inputs on mixers or other equipment,
0 dB: standard setting for microphone level inputs,
+6 dB: for studio mixers.
The UNBALANCED output level is not adjustable.
11 DATA: Data output for connecting to a HUB 4000 Q (optional) for controlling the receiver from a computer system.
For details visit www.akg.com.
12 LOGIC OUT: Logic output for controlling external functions (e.g., channel muting on an AS 8 automatic mixer). This
3-pin Phoenix connector provides the following signals:
1 Receiver audio output on (5 V) / muted (0 V)
2 Logic ground
3 Transmitter batteries o.k. (5 V) / nearly dead (0 V)
The receiver type plate (13) indicating available carrier frequency ranges and approval information is affixed to the bot-
tom panel.
SR 4500
2 Description
2.5.2 Rear Panel
Refer to fig. 2.
2.6 Audio Outputs
Refer to fig. 2.
2.7 Bottom Panel
19