Charles 3650-01, Руководство пользователя

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Section 365-001-201
11
12. SPECIFICATIONS
12.1 Electrical (Single-Ended)
(a) Transmit input TLP range: –9.5 to +7 dBm
(b) Receive output TLP range: –10.5 to +6 dBm
(c) Transmit prescription attenuation: 0 to 16.5 dB in increments of 0.1 dB
(d) Receive prescription attenuation: 0 to 16.5 dB in increments of 0.1 dB
(e) Transmit and receive port impedance: 3650–01, 900 ohms + 2.15 uF; 3650–02, 600 ohms + 2.15 uF
(f) Transmit and receive path frequency response (referenced at 1kHz):
Frequency (Hz) XMT (dB) RCV (dB)
60 –20 minimum –
200 –2.5 to 0 –1.5 to 0
300 –0.49 to +0.24 –0.49 to +0.24
1000 0 (ref) 0 (ref)
3000 –0.49 to +0.24 –0.49 to +0.24
3400 0 to –1.2 0 to –1.2
4000 –14 minimum –14 minimum
5100 –32 minimum –32 minimum
(g) Longitudinal balance: –62 dB or less at 200 Hz to 1 kHz; –60 dB or less at 3 kHz
(h) Signal to distortion ratio: 35 dB minimum at 0 to –30 dBm0; 29 dB minimum at –40 dBm0; 25 dB
minimum at –45 dBm0
(i) Trans-hybrid loss: Echo return loss, 36 dB minimum; singing return loss, 25 dB minimum; singing re-
turn loss high, 32 dB minimum
(j) Return loss: Echo return loss, 35 dB minimum; singing return loss, 23 dB minimum; singing return
loss high, 32 dB minimum
(k) Transmit/receive idle channel noise: 20 dBrnC0 maximum
(l) Crosstalk: 61 dBm0 minimum at 400 Hz, 71 dBm0 minimum at 700 Hz to 1 kHz, 70 dBm0 minimum
at 3 kHz
(m) Level tracking (measured single-ended at 1010 Hz): +/–0.25 dB from +3 to –37 dBm0, +/–0.5 dB
from –38 to –50 dBm0