Selecting Test Features

Inserting an External DSn Payload/Test Signal

Inserting an External DSn Payload/Test Signal

Description You can insert a DSn signal from external equipment into the SONET signal, or you can insert 2 Mb/s or DS1 into the structured DSn signal, as shown in the table below. DS3 and 34 Mb/s can only be inserted if SONET is chosen as the receive interface. 2 Mb/s or DS1 can be inserted from a structured or non-structured SONET payload and from a structured DSn signal.

 

 

RATE

Availability

Option

 

 

 

 

 

 

 

DS3

SONET

011 Only

 

 

 

 

 

 

 

34Mb/s

SONET

010 and 011

 

 

 

 

 

 

 

2Mb/s

DSn & SONET

010 and 011

 

 

 

 

 

 

 

DS1

DSn & SONET

011 Only

 

 

 

 

 

HOW TO:

Insert 34 Mb/s & DS3

 

 

1Connect the external payload to the 75Ω IN port of the PDH/DSn receive module.

2Set up the required transmit SONET interface, and choose VT PAYLOAD INSERT 34 Mb/s or INSERT DS3 as required.

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HP BER 718 37718A manual Inserting an External DSn Payload/Test Signal, Insert 34 Mb/s & DS3