Audio Input; Audio Output - Extron electronics ISM 824 User Manual

Reference Information, cont'd
Sync — ISM VS
Input type ...................................... Pass-through RGBHV, RGBS, RGsB
Output type .................................... RGBHV, RGBS, RGsB
Standards ........................................ NTSC 3.58, NTSC 4.43, PAL, SECAM
Input level ..................................... 0.5 V to 5.0 Vp-p, unterminated. 4.0 Vp-p normal.
Output level .................................. TTL: 5.0 Vp-p, unterminated
Input impedance ........................... 75 ohms
Output impedance ........................ 75 ohms
Max. input voltage ........................ 5.0 Vp-p
Max. propagation delay ............... 30 ns (RGB pass-through
Audio
Gain ................................................. Unbalanced output: -6 dB
Frequency response ..................... 20 Hz to 20 kHz, ±0.5 dB
THD + nouse .................................. 0.03% @ 1 kHz at nominal level, 0 dB gain
S/N .................................................. >90 dB, at maximum rated output drive
Crosstalk ......................................... <-80 dB @ 1 kHz, fully loaded
Stereo channel separation ............ >90 dB @ 1 kHz
CMRR .............................................. >75 dB @ 20 Hz to 20 kHz

Audio input

Number/signal type .................... 8 stereo, balanced/unbalanced
Connectors .................................... (8) 3.5 mm captive screw connector, 5 pole
Impedance ...................................... >10k ohms, balanced/unbalanced, DC coupled
Nominal level ................................ +4 dBu (1.23 V), -10 dBV (316 mV)
Maximum level .............................. +19.5 dBu, (balanced or unbalanced) at 1% THD+N
Input gain adjustment .................. -18 dB to +24 dB
0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu
N

Audio output

Number/signal type .................... 2 (base model, upgradeable to 8) stereo, balanced/unbalanced
Connectors .................................... (2, upgradeable to 8) 3.5 mm captive screw connectors, 5 pole
Impedance ...................................... 50 ohms unbalanced, 100 ohms balanced
Gain error ....................................... ±0.5 dB channel to channel
Maximum level (Hi-Z) ................. >+21 dBu, balanced or >+15 dBu unbalanced at 1% THD+N
Maximum level (600 ohm) ........... >+15 dBu, balanced or unbalanced at stated 1% THD+N
Output volume range ................... 0 to 64 (-64 dB to 0 dB) in 1 dB increments from steps 1 through 64.
Control/remote — switcher
Serial host control port ................ 1 rear panel RS-232 or RS-422, 9-pin female D connector
Baud rate and protocol ................. 9800 baud, 8 data bits, 1 stop bit, no parity
Serial control pin configurations
9-pin D connector ................. RS-232: 2 = TX, 3 = RX, 5 = GND
2.5 mm mini stereo jack ....... RS-232: tip = TX, ring = RX, sleeve = GND
Ethernet control port..................... 1 RJ-45 female connector
Ethernet data rate .......................... 10/100Base-T, half/full duplex with autodetect
B-4 ISM 824 Integration Scaling Multiswitcher• Reference Information
Bi-level on Y, R-Y, B-Y channels (component video)
Balanced output: 0 dB
1 front panel RS-232 2.5 mm mini stereo jack
RS-422: 2 = TX-, 3 = RX-, 5 = GND, 7 = RX+, 8 = TX+