Nortel Circuit Card 311 Reference page 369

Table 165
XMFC sender specifications
Forward frequencies in DOD mode:
Backward frequencies in DOD mode:
Frequency tolerance:
Power level at each frequency:
Level difference between frequencies:
Harmonic Distortion and Intermodulation
Time interval between start of 2 tones:
Time interval between stop of 2 tones:
Table 166
XMFC receiver specifications
Input sensitivity:
accepted:
rejected:
Bandwidth twist:
accepted:
rejected:
Amplitude twist:
accepted:
Norwegian requirement
rejected:
Operating time:
Release time:
Tone Interrupt no release:
Longest Input tone ignored:
Noise rejection:
XMFE sender and receiver specifications
Table 167 "XMFE sender specifications" (page 370)
"XMFE receiver specifications" (page 370)
requirements for the XMFC/MFE card when it is configured as an XMFE
card. These requirements conform to French Socotel specifications
ST/PAA/CLC/CER/692.
Copyright © 2003-2008, Nortel Networks
.
1380, 1500, 1620, 1740, 1860, 1980 Hz
1140, 1020, 900, 780, 660, 540 Hz
+/- 0.5 Hz from nominal
Selectable: 1 of 16 levels
< 0.5 dB
37 dB below level of 1 signaling frequency
125 usec.
125 usec.
-5 to -31.5 dBmONew CCITT spec.
-38.5 dBmOBlue Book
fc +/- 10 Hz
fc +/- 60 Hz
difference of 5 dB between adjacent frequencies
difference of 7 dB between non-adjacent frequencies
difference of 12 dB (for unloaded CO trunks)
difference of 20 dB between any two frequencies
< 32 msec.
< 32 msec.
< 8 msec. Receiver on, while tone missing
< 8 msec. Combination of valid frequencies
S/N > 18 dB No degradation, in band white noise
S/N > 13 dB Out-of-band disturbances for CCITT
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Sender and receiver mode 369
and Table 168
provide the operating