User manual

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Active Wall Plate (WP) Devices
8
5.2 WA-21N Twisted-Pair Audio Transmitter
The Kramer WA-21N—a twisted-pair audio transmitter—is a 3.5mm mini
headphone audio connector to 6-pole + 2-pole terminal blocks, with left and
right audio level controls, as Figure 7 illustrates:
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Figure 7: WA-21N Twisted-Pair Audio Transmitter
Table 2: WA-21N Twisted-Pair Audio Receiver Technical Specifications
INPUT: 1 Audio stereo on 3.5mm phone jack
OUTPUT: 1 CAT 5 differential stereo on 6-pin terminal block
BANDWIDTH (-3dB): >100kHz
S/N RATIO: 80dB
CONTROLS: Level: -30dB to 6dB
COUPLING: AC
AUDIO THD + NOISE: 0.05%@1kHz
AUDIO 2nd HARMONIC: 0.005%@1kHz
POWER SOURCE: 12V DC, 30mA