3-233
Performance Tests
ETSI/ANSI Receiver Monitor Levels (Option 110)
ETSI/ANSI Receiver Monitor Levels (Option 110)
NOTE An SPDH Tx Module must be fitted for this test - see Appendix B.
Specifications
Description
The signal from the HP 37717C Option 110 PDH Transmitter is applied to the
Option 110 PDH Receiver after attenuating by an amount equal to the selected
Receiver Flat Loss plus the specified Cable Loss. The Flat Loss is obtained by
inserting a number of 50Ω, fixed attenuators in series with a 75/50Ω Matching Pad
at one end and a 50/75Ω Matching Pad at the other end. The loss of the two
Matching Pads is included in the overall attenuation equation. The Cable Loss is
supplied by inserting the correct Cable Simulators for each bit rate in the attenuation
path.
Equipment Required
Bit Rate Nominal Loss Equalization at 1/2 Bit Rate
2.048 Mb/s 20, 26, 30dB 3dB
1.544 Mb/s (DS-1) 20, 26, 30dB 3dB
34.368 Mb/s 20, 26dB 6dB
44.736 Mb/s (DS-3) 20, 26dB 6dB
Table3- 10
2M Bit Rate Cable Simulator #1
34M Bit Rate Cable Simulator #3
1.5M Bit Rate Cable Simulator #5
44M Bit Rate Cable Simulator #6