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1 Descriptions MIX 56 User Manual
1-10 Telect, Inc. 122188-10 A0
SPECIFICATIONS
Electrical
DS1
Impedance: 100 ohms nominal, balanced
Line Rate: 1.544 Mb/s ±32 ppm
Line Coding: AMI or B8ZS (user selectable)
Jitter: Meets ANSI T1.403, T1.102, AT&T 62411
Pulse Amplitude and Shape: Per ANSI T1.102, T1.403, and GR-342-
CORE
Return Loss: >26 dB
Short Haul DSX-1 (selectable)
Cable Length in feet (22 gauge ABAM or equivalent): 0–110, 110–220,
220–330, 330–440, 440–550, 550–660
Long Haul DS1 (selectable)
Cable Length (22 gauge ABAM or equivalent): 6000 ft (total cable
length).
Line Build Out (LBO): 0 dB, –7.5 dB, –15 dB, –22.5 dB. These corre-
spond to approximate cable lengths of 6000-4500 ft, 4500-3000 ft,
3000-1500 ft, and 1500-0 ft, respectively. Receive sensitivity down to -
30 dB. Far-end equipment must have comparable long-haul receive
sensitivity.
E1
Impedance: 120 ohms nominal, balanced
Line Rate: 2.048 Mb/s ±50 ppm
Line Coding: AMI or HDB3 (user selectable)
Jitter: Meets ITU-T G.703, G.823, and I.431
Pulse Amplitude and Shape: meets ITU-T G.703
Return Loss: >18 dB
DS3
Impedance: 75 ohms, unbalanced
Line Rate: 44.736 Mb/s ±20 ppm