Telex 1505 service manual Specifications

7. 1505 Specifications

Operating Temperature Range: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 60°C

Power Requirements: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 to 16 Vrms semi-regulated, 250 mA nominal 600 Ω/10K Ω Balanced Receive Line Input Level: . . . . -30 dBm to +10 dBm, adjustable 10 K Ω/10 K Ω

Unbalanced Receive Input Level: . . . . . 0.025 Vrms to 2.5 Vrms, adjustable 10 K Ω/10K Ω

Mic Input Sensitivity:. . . . . . . . . . . . . . . 0.010 Vrms to 1.0 Vrms, adjustable 10K Ω/10K Ω

Summing Input Level: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 dBm (0.776 Vrms) nominal

Receive Amplifier Distortion:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1% THD max.

Receive Frequency Response: . . . . . . . . . . . . . . . . . . . . . . . . +1/-2 dB, 100 Hz to 10 KHz

Compression Range: . . . . . . . . . . 30 dB increase in signal, output increases less than 3 dB

Summing Level: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 dBm (0.776 Vrms) nominal

Balanced Transmit Line Output Level: . . . . . . . . . . . . -15 dBm to +10 dBm, 600 Ω Line

Transmit Amplifier Distortion: . . . . . . . . . . . . . . . . . . . . . . . . . 1% THD max. @ 0 dBm

Transmit Frequency Response: . . . . . . . . . . . . . . . . . . . . . . . +1/-2 dB, 100 Hz to 10KHz

Summing Amplifier Output Level: . . . . . . . . . . . . . . . . . . . . 0 dBm (0.776 Vrms) nominal

Summing Amplifier Distortion: . . . . . . . . . . . . . . . . . . . . . . . . . 1% THD max. @ 0 dBm

Summing Amplifier Frequency Response: . . . . . . . . . . . . . . +1/-2 dB, 100 Hz to 10 KHz

Crosstalk Line to Line: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 dB min.

S/N @ -10 dBm Input: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 dB min.

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