Agilent Technologies OmniBER 718 SDH User Manual page 31

Setting the Interfaces
Setting SDH Transmit Interface
Description SDH transmit interface settings should match the network equipment settings of
Rate, Wavelength and Mapping, determine the payload to be tested and set
background conditions to prevent alarms while testing.
Laser On/Off selection (see display below)
Always switch off the laser before connecting or disconnecting optical cables.
TIP: If you wish to set the OmniBER 718 transmitter and receiver to the same interface
settings choose
1 Make your choice of SIGNAL rate.
HOW TO:
If Option 106, Dual Wavelength optical module, is fitted and an optical rate is
chosen, choose the required wavelength (1550 or 1310).
If STM-0 is chosen, choose the required interface level.
Choose
chosen, see "Setting SDH THRU Mode " page 38.
2 Make your choice of CLOCK synchronization source. The clock can be
internally sourced from the instrument, recovered from the signal at the optical
RECEIVE port or externally sourced from the CLOCK REF IN ports (MTS 64
kb/s, BITS 1.5 Mb/s or 10 MHz REF).
3 If required choose the FREQUENCY OFFSET value. See "Adding Frequency
Offset to SDH Signal" page 64.
4 Choose the required
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OTHER
SETTINGS CONTROL COUPLED
unless
INTERNAL THRU MODE
F/G MAPPING
.
is required. If
THRU MODE
and PAYLOAD TYPE, then
is