RAD Data comm ASMI-450 User Manual
Page 28

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
135
Ω
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 135
Ω
)
−
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