Symmetricom 1000 User Manual
Chapter 7 Specifications of the TimeProvider
Outputs
Outputs
198 TimeProvider User’s Guide
097-58001-02 Revision G – April 2008
Outputs
The TimeProvider supports up to 32 outputs. The optional Expansion Panel
provides an additional 32 outputs. You can provision the outputs in groups of eight.
provides an additional 32 outputs. You can provision the outputs in groups of eight.
Sync Status Messages: Compliant with SSM specification ITU-T G.704, T1X1.3
TR33, ANSI T1.101-1999, and Telcordia GR-253-CORE
TR33, ANSI T1.101-1999, and Telcordia GR-253-CORE
Table 7-5. Output Signal Specifications
Parameter
Specification
T1 Signals
Framing (user selectable)
D4/Super Frame (SF)
Extended Super Frame (ESF)
Extended Super Frame (ESF)
Signal Waveshape
Framed, all ones, Alternate Mark Inversion (AMI) per (ANSI)
T1.102 and ITU Rec. G.703
T1.102 and ITU Rec. G.703
Pulse Amplitude
2.4 to 3.6 volts peak into 100 V
Output Jitter
< 0.03 UI
Termination Impedance
100
Ω ± 5% balanced
E1 Signals
Framing (user selectable)
CAS, CCS
Signal Waveshape
Framed, all ones, Alternate Mark Inversion (AMI)
Per ITU Rec. G.703 Sec. 9
Per ITU Rec. G.703 Sec. 9
Pulse Amplitude
2.4 to 3.6 volts peak into 120
Ω
1.9 to 2.8 volts peak into 75
Ω
Output Jitter
< 0.03 UI
Termination Impedance
120
Ω ± 5% balanced; 75 Ω ± 5% unbalanced
CC Signals
Amplitude
2.7 to 3.3 V
p
Waveform
Bipolar RTZ; all 1s with BPV every eighth pulse
Termination Impedance
133
Ω ± 5% balanced
JCC Signals
Amplitude
1.0 V
p
±0.1 V
Termination Impedance
110
Ω