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External Clock Reference Inputs and Clock Reference Output
NO TE
Installation and Verification Manual
Specifications
Clock Rate
2.048 Mb/s MTS
2.048 MHz Clock
1.544 Mb/s BITS
The 2 MHz input is only available when SDH or En rate is selected on the
Transmitter. The DS1 input is only available when SONET or T-Carrier rate
is selected on the Transmitter. The BITS Clock is not a binary format
signal. Signal is a Ternary All 1s DS-1 signal with ESF Framing, clocked at
1.544 MHz.
Description
The test uses a PDH/DSn Test Set and a Frequency Counter
connected to the appropriate external Clock input and output
ports. When the Transmitter is set to external Clock the
reference Clock output port timing and signal rate generation is
derived from the external Clock source.
Equipment Required
Frequency Counter
DSn Test Set
Bantam/Bantam Cables (2)
75/50 ohm Matching Pad
Bal/Unbal Converter
Performance Tests
Description
Accepts timing reference as per ITU-T
G.703-1998
Accepts timing reference as per ITU-T
G.703-1998
Accepts DS-1 timing reference as per
TA-TSY-000378
Agilent 53181A Option 010,015 (see Note)
Agilent 37718C with Option 012
Agilent 15670A
Agilent E2629A
Agilent 15508B
3
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