Nortel Networks Circuit Card - Manual (Page 376)

Page 376 of 906 NT5K21 XMFC/MFE card
553-3001-211 Standard 3.00 August 2005
Physical specifications
Table 147 outlines the physical specifications of the NT5K21 XMFC/MFE
circuit card.
Table 146
XMFE receiver specifications
Input sensitivity:
accepted:
rejected:
rejected:
rejected:
-4 dBm to -35 dBm +/- 10 Hz of nominal
-42 dBm signals
-4 dBmoutside 500-1900 Hz
-40 dBmsingle/multiple sine wave in 500-1900 Hz
Bandwidth:
accepted: fc +/- 20 Hz
Amplitude twist:
accepted: difference of 9 dB between frequency pair
Operating time: < 64 msec.
Release time: < 64 msec.
Tone Interrupt causing no
release: < 8 msec. Receiver on, tone missing
Longest Input tone ignored: < 8 msec. Combination of valid frequencies
Longest control tone ignored: < 15 msec.Control Frequency only
Noise rejection: S/N > 18 dBNo degradation in-band white noise
Table 147
Physical specifications (Part 1 of 2)
Dimensions Height:12.5 in. (320 mm)
Depth:10.0 in. (255 mm)
Thickness:7/8 in. (22.25 mm)
Faceplate LED Lit when the circuit card is disabled