User's Manual

Table Of Contents
Appendix A Specifications
E3/DS3/STS-1 specifications
T-BERD/MTS 5800 Getting Started Manual
117
Transmitter
(STS-1 circuits)
Table 26 lists specifications for the transmitter when running
STS-1 applications.
Table 26 STS-1 transmitter specifications
Parameter Specification
Connector One BNC (TX/RX2); used as transmitter only
Bit rate 51.84 Mbps
Line coding B3ZS
Clock Source
(Timing)
Internal reference clock with accuracy ±1.5 ppm, ±1 ppm
per year aging
Recovered from STS-1 Rx1
External from BITS, SETS, or CLOCK
Frequency offset ±50 ppm, in 1 ppm steps
Pulse (high) Nominal 1.15 Vp. Complies with ANSI T1.102-1993 and ITU-T
G.703 (11/01) after passing through 450 feet of RG59B/U
cable.
Pulse (DSX) Nominal 0.6 Vp. Complies with ANSI T1.102-1993 and ITU-T
G.703 (11/01).
Pulse (low) Nominal 0.32 Vp
Pulse shape With output terminated in 75 Ω resistive load and DSX
selected, the Handheld Network Test Family meets ITU-T
Recommendation G.703 (11/01) and ANSI T1.102-1993
Impedance Nominal 75 Ω