Viavi T-BERD MTS 5800, Руководство по началу работы

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Appendix A Specifications
T-BERD / MTS 5800 and Smart Class 4800 specifications
T-BERD/MTS/SC Getting Started Guide
March 2018 22046537, Rev. 016 Page 167
E1 (RJ-48) specifications
Table 24 through Table 26 on page 167 list specifications for the E1 (RJ-48) connector.
Receiver (RJ-48)
The E1 receiver operates as per ITU-G.703 (11/01). Table 24 lists the receiver specifi-
cations.
Table 25 lists the input sensitivity specifications for the E1 receiver.
Transmitter (RJ-48)
The E1 transmitter operates as per ITU-G.703 (11/01). Table 26 lists the transmitter
specifications.
Table 24 E1 RJ-48 receiver specifications
Parameter Specification
Connector Balanced RJ-48
Bit rate 2.048 Mbps
Frequency measure-
ment Range: 2.048 MHz ±250 ppm
Accuracy: ±1.5 ppm, ±1 ppm per year aging
Resolution: 1 Hz
Level Measurement
(Balanced)
Level Vp
Range: +4 V to 0.03 V
Accuracy: ±0.02 V ± 10%
Resolution: 0.01 V
Level dBnom
1
:
Range: +2.5 dBnom to -37 dBnom
Resolution: 0.1 dB
1. The designation in dBnom is relative to nominal signal 3 Vp.
Table 25 E1 RJ-48 receiver sensitivity specifications
Termination
Type
Impedance Input Range
Bridge (HI-Z) >1200 Ω +2.5 to -35 dBnom due to cable loss
Terminate 120 Ω balanced +2.5 to -35 dBnom due to cable loss
PMP 120 Ω balanced -20 dBnom due to resistive loss in addi-
tion to 0 to -6 dB due to cable loss
Table 26 E1 RJ-48 transmitter specifications
Parameter Specification
Connector Balanced RJ-48
Line code HDB3 or AMI