Viavi T-BERD MTS 5800, Getting Started Manual

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Appendix A Specifications
MSAM specifications
T-BERD/MTS/SC Getting Started Guide
March 2018 22046537, Rev. 016 Page 209
Physical measurements (E4 circuits)
Table 107 lists frequency and level measurement specifications when running E4 appli-
cations.
Receiver (STM-1e circuits)
Table 108 lists specifications for the receiver when running STM-1e applications.
Transmitter (STM-1e circuits)
Table 109 lists specifications for the transmitter when running STM-1e applications.
Table 107 E4 frequency and level measurement specifications
Parameter Specification
Tx and Rx
Frequency
– Range: 139.264 MHz ±100 ppm
– Accuracy: ±1.5 ppm, ±1 ppm per year aging
– Resolution: 1 Hz, or 1 ppm
Level Vpp – Range: 1.4 V to 0.01 V
– Resolution: 0.01 V
– Accuracy: ±0.05 V ±10%
Table 108 STM-1e receiver specifications
Parameter Specification
Connector One BNC
Bit rate 155.52 Mbps
Impedance Nominal 75
Ω
at 78 MHz unbalanced
Range Term: 0 to 12.7 dB due to cable loss at 78 MHz, from a
nominal signal
PMP: -20 dB due to resistive loss in addition to 0 to 12.7 dB
due to cable loss at 70 MHz, from a nominal signal
Table 109 STM-1e transmitter specifications
Parameter Specification
Connector One BNC
Bit rate 155.52 Mbps
Line coding CMI
Tx clock
(Timing) – Internal reference clock with accuracy ±1.5 ppm,
±1 ppm per year aging
– Recovered from Rx1
– External from BITS, SETS, or CLOCK
Frequency offset ±50 ppm, in 1 ppm steps
Pulse Nominal 1.0 Vpp Complies with ITU-T G.703 (11/01)