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CHAPTER 1 GENERAL INFORMATION
DTI Specifications
NEAX2000 IVS
2
ISDN System Manual
ND-70919 (E), Issue 1.0
Page 27
DTI SPECIFICATIONS
Transmission Characteristics
Table 1-5 Transmission Characteristics
CHARACTERISTICS 24-CHANNEL 30-CHANNEL
(1) Output
• Line Rate
• Line Code
• Line Impedance
• Pulse Amplitude
(Base to Peak)
• Pulse Width
1.544 Mbps ± 50 ppm
AMI with ZCS/B8ZS*
100 ohms
3 volts ± 0.6 volts
324 ns ± 30 ns
2.048 Mbps ± 50 ppm
HDB3 (High Density Bipolar 3)
75 ohms
(Coaxial Cable)
120 ohms
(Twisted-Pair Cable)
2.37 volts nominal
(Coaxial Cable)
3 volts nominal
(Twisted-Pair Cable)
244 ns nominal
* AMI : Alternate Mark Inversion
ZCS : Zero Code Suppression
B8ZS : Bipolar Eight Zero Substitution