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Introduction
1-10 ASMi-450 Installation and Operation Manual
1.3 Technical Specifications
HDSL Interface
Signal Format 2B1Q line coding
Line Type One unconditioned, unloaded twisted pair
Nominal Impedance 135Ω
Transmit Pulse Shape Per ANSI T1E1.4/92-002RI and ETSI ETR-152
Transmit Signal Power +13 dBm
Loop Loss
−
35 dB max. at 200 kHz (392 kbaud)
−
31 dB max. at 150 kHz (584 kbaud)
Typical Range (AWG 24 Wire (0.5 mm))
392 kbaud 5.7 km
584 kbaud 4.5 km
Return Loss (Relative to 135Ω)
−
16 dB minimum, 40 kHz to 200 kHz @ 392 kbaud
−
16 dB minimum, 25 kHz to 317 kHz @ 584 kbaud
Loop Loss
−
35 dB maximum at 200 kHz (392 kbaud)
−
31 dB maximum at 150 kHz (584 kbaud)
Noise Margin
−
6 dB at 392 kbaud
−
3.3 dB for 584 kbaud
Equalizer Automatic adaptive equalizer
Connector RJ-45
User's Serial Data Port Interface
Interface Type V.35, V.36/RS-422, RS-530, or X.21, in accordance with
order
Bit Rates
ASMi-450/768 n×64 kbps, up to 768 kbps
ASMi-450/1152 n×64 kbps, up to 1152 kbps
Interface Connectors
V.35 34-pin, female
RS-530 25-pin D-type, female
RS-449/V.36 37-pin D-type, female (via adapter cable)
X.21 15-pin D-type, female