HP 37718A User Manual

2-7
Installation
Connecting to the Network
DS1 100 Ω,
2Mb/s 120 Ω IN
PDH / DS1 receiver input interface. Allows the connection of 100 Ω
balanced DS1 and 120 Ω balanced 2 Mb/s data signals.
DS1 100 Ω,
2Mb/s 120 Ω OUT
PDH / DS1 transmitter output interface. Provides 100 Ω balanced DS1
and 120 Ω balanced 2 Mb/s data signals. A “keep alive” signal is output
when the transmit signal is SDH/SONET.
52/155 Mb/s
DATA IN
SDH/SONET receiver input interface. Allows the connection of 75 Ω
unbalanced STM 0/1, STS 1/3 electrical signals.
52/155 Mb/s
DATA OUT
SDH/SONET transmitter output interface. Provides a 75 Ω unbalanced
STM 0/1, STS 1/3 electrical output.
64k REF IN
1.5M REF IN
2M REF IN
These ports allow connection of timing reference signals.
REF OUT Provides a 2 MHz reference Clock Output.
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. In conjunction 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. In conjunction with the SDH module a
2.048 Mb/s signal can be inserted into a TU-12.
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.

HP 37718A Specifications

General

Brand	HP
Model	37718A
Category	Measuring Instruments
Language	English