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TimeProvider 500 2.0 User’s Guide
098-00172-000 Revision A – December, 2009
Chapter 6
Component Specifications
E1 Outputs
2.048 MHz Outputs
Holdover
< 20 microseconds after 24 hours following loss of PTP reference
Test Conditions:
TimeProvider 500 subjected to 5
C temperature variation throughout test.
TimeProvider 500 referenced to PTP for at least 24 hours prior to the start of holdover.
TimeProvider 500 powered > 5 days prior to the test.
Table 6-10. E1 Output Specifications
Parameter
Specification
Connector Type
BNC & RJ48C
Connector Label
OUT1, OUT2, OUT3 & OUT4
Framing (user selectable)
CAS, CCS, CAS4, CCS4
Signal Waveshape
Framed, all ones, Alternate Mark Inversion (AMI)
Per ITU-T Rec. G.703 Sec. 9
Pulse Amplitude
2.7 to 3.3 volts peak into 120
2.13 to 2.6 volts peak into 75
Termination Impedance
120
± 5% balanced; 75
± 5% unbalanced
Table 6-11. 2.048 MHz Specifications
Parameter
Specification
Connector Type
BNC & RJ48C
Connector Label
OUT1, OUT2, OUT3 & OUT4
Amplitude
2.7 to 3.3 volts peak into 120
2.13 to 2.6 volts peak into 75
Wave Shape
Square Wave
Termination Impedance
75
Содержание TimeProvider 500
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