
System Specifications
Plexus 9000 Installation and Operations Manual
Issue 6, April 25, 2003
Section 130-115-000
4-6
Telica,
Inc.
Table 4-G. J1 SPECIFICATIONS
J1 SPECIFICATIONS
Nominal line:
1.544 Mb/s ± 130 ppm
AIS line rate:
1.544 Mb/s ± 32 ppm
Line code:
Half width bipolar AMI or B8ZS (channel
selectable)
Frame format:
Selectable J-ESF/J-D4 per channel
Termination:
One balanced twisted pair shall be used for each
direction of transmission.
Impedance:
100 ohms ± 5% (balanced)
Pulse shape:
Meets TR-TSY-000499 mask with amplitude of
between 2.4 and 3.6 volts.
Note:
When measuring the pulse mask, a 100-ohms
T1 patch cable is required.
Power level:
For an all-ones pattern, the power in a band no wider
than 3 kHz:
•
Centered at 772 kHz is between 12.6 and
17.9 dBm.
•
Centered at 1544 kHz is at least 29 dB below
the power level at 772 kHz.
Pulse imbalance: Less than 0.5 db difference between total power of
positive and negative pulses.
Jitter generation: Less than 0.3 timeslots RMS
Maximum span: 655 feet to cross connect using 22 AWG cable
400 feet to cross connect using 24 AWG cable