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Performance Tests
STM-1 Receiver Monitor Input (Special Option 808)
STM-1 Receiver Monitor Input (Special Option 808)
Specification
Description
A fixed attenuator and a special cable attenuator are inserted between the STM-1
OUT port and the STM-1 IN port. The Receiver monitor mode is verified by
attenuating the signal by 20dB, along with the cable attenuator, and checking for
error-free operation.
Equipment Required
Procedure
1. Recall the HP 37717C DEFAULT SETTINGS as shown on 3-2.
2. Select TRANSMITTER OUTPUT [SDH] and RECEIVER INPUT [SDH].
3. Connect up the equipment as shown in Figure 3-43.
Receiver Monitor Mode 20 dB of flat gain
6dB Equalization at 1/2 Bit Rate
3 dB Attenuator (N-type) : HP 8491A Option 003
6 dB Attenuator (N-type) : HP 8491A Option 006
75/50Ω Matching Pad (N-type) : HP 11852B (Qty 2)
N-type (f) to BNC (f) Adaptor : HP 1250-1536 (Qty 2)
N-type (m) to N-type (f)Adaptor : HP 1250-1475
Cable Attenuator (35m) : HP 8120-0049
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