7-5
© Sage Instruments 2000
9100-2930-02 01/31/00
Sage Instruments 930i Communications Test Set
Specifications
7-13 Intermodulation Distortion
Transmitter Level Range
Metallic:
0.0 dBm to -40.0 dBm RMS
PCM:
-6.9 dBm to -40.0 dBm RMS
Accuracy
±
1 dB
Receiver Input Level
Metallic:
0.0 dBm to -40.0 dBm RMS
PCM:
-6.0 dBm to -40.0 dBm RMS
Distortion Products
2nd order centered at 520 Hz and 2240 Hz
3rd order centered at 1900 Hz
Distortion Range
2nd order:
10–70 dB below signal
3rd order:
10–70 dB below signal
Resolution
1 dB
Accuracy
±
1 dB
Signal-to-Noise Test
Removes low tone pair and increases level of remaining tone
Pair by 3 dB.
7-14 Supervision and Signalling
Wink Timing
Resolution
5 ms
Accuracy
±
5 ms
Wink Fail Event
Fails for wink period >600 ms
Off-Hook Fail Event
Fails for off-hook period <600 ms
E&M Supervision
Types
I, II, III, IV, V
Battery
-48 V DC current limited to 200 mA
Threshold Voltages
On-hook
< -39 Volt on E Lead > -11 Volt M Lead
Off-hook
> -11 Volt on E Lead < -39 Volt M Lead
Loop Supervision
Types
2- and 4-wire loop start, ground start, loop reverse
and SX supervision
Battery
-48 V DC series limited to 120 mA
Metering Pulses
12 and 16 kHz, detect and send
MFC R1/R2, DTMF Senders
DTMF/MFCR1/R2
±
0.1% of ITU-T Standard Frequencies
Adjustment Range
Tone frequencies adjustable in 0.1% steps to
±
10% of
standard frequencies for margining tests
Level
-7 dBm0 per tone in MFCR1 and DTMF
-8 dBm0 per tone in MFCR2.
Level Adjustment Range
Tone level adjustable in 0.1 dB steps from -60.0 dBm to +6.0 dBm
Resolution
0.1 dB
Accuracy
±
0.2 dB
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Содержание 930i
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