HP 37717C, Calibration Manual, Page: 97 / 399

2-8
Installation
Connecting to the Network
CLOCK OUT
(Opt 110) Outputs the selected transmitter clock (internal or looped receiver clock).
Note that this output is turned OFF when the TRANSMIT
module is supplying payload to the SDH module.
DATA IN Allows connection of SDH/SONET binary data to Options 130 or 131.
.
DATA OUT Provides SDH/SONET binary data from Options 130 or 131.
MUX Allows the insertion of an external 2 Mb/s tributary into the transmitted
payload.
MUX DS1 100
Ω
Allows an externally supplied DS1 signal to be inserted in any or all
timeslot(s) of a DS3 signal. Inconjunction with the SDH/SONET module
a DS1 signal can be inserted into a VT1.5 or TU-11.
MUX 2 Mb/s 75
Ω
Allows an externally supplied 2.048 Mb/s signal to be inserted in any or
all timeslot(s) of a 34 Mb/s signal. Inconjunction with the SDH module a
2.048 Mb/s signal can be inserted into a TU-12.
DEMUX (Opt UKJ)
Provides a 2 Mb/s tributary dropped from the received payload.
DEMUX DS1
100
Ω
Allows a DS1 signal to be dropped from any timeslot of a DS3 signal. In
conjunction with the SDH/SONET module this port allows the
demultiplexing of a DS1 signal carried in a VT1.5
DEMUX
2 Mb/s 75
Ω
Allows a 2.048 Mb/s signal to be dropped from any timeslot of an 8.448
Mb/s, 34.368 Mb/s or 139.264 Mb/s signal.
STM-1E IN Allows connection of STM-1 electrical input for SDH Jitter
Measurement.