Extron Electronics DTP HDMI 301 User Guide - Manual (Page 19)

Audio input
Number/signal type ........................ 1 PC level stereo, unbalanced
Connectors .................................... (1) 3.5 mm stereo jack, 2 channel; tip (L), ring (R), sleeve (ground)
Impedance ..................................... >10k ohms, DC coupled
Nominal level ................................. -10 dBV (316 mVrms)
Maximum level ............................... +7 dBV (unbalanced)
NOTE: 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu
Audio output
Number/signal type ........................ 1 stereo (2 channel), balanced/unbalanced
Connectors .................................... (1) 3.5 mm captive screw connector, 5 pole
Impedance ..................................... 50 ohms unbalanced, 100 ohms balanced
Gain error ...................................... ±0.1 dB channel to channel
Maximum level (600 ohm) .............. >+15 dBu, balanced
Control/remote — external device (pass-through, unidirectional or bidirectional)
Serial control port input/output
Transmitter .............................. RS-232 via (1) 3.5 mm, 5 pole captive screw connector for RS-232 control (±5 V)
(connector is shared with IR control port)
Receiver ................................... 1 set of proprietary signals on a female RJ-45 jack
Serial control port output/input
Transmitter .............................. 1 set of proprietary signals on a female RJ-45 jack
Receiver ................................... RS-232 via a 3.5 mm, 3 pole captive screw connector
Baud rates ...................................... Up to 115200 baud
Protocol ......................................... Data bits = 5 - 8
Stop bits = 1 or 2
Parity = odd, even, none
Flow control = XON, XOFF, none
Serial control pin configuration ....... 1 = Tx, 2 = Rx, 3 = GND
IR control port ................................ (1) 3.5 mm, captive screw connector, 5 pole (connector is shared with RS-232
control port)
TTL level (0 to 5 V) modulated infrared control from 30 kHz up to 60 kHz
IR control pin configuration ............ 3 = GND, 4 = IR Tx, 5 = IR Rx
DTP HDMI 301 • Reference Information 13