Agilent Technologies Auroraduet N1726A, User Manual, Page: 74 / 507

Issue 01 - 06/99 3 - 9
Setting up aurora
Duet
- Section 1
Selecting the Type of Protocol Link
When testing a Basic Rate link that uses ISDN protocol
support (i.e. not a fixed link) to specify whether you
intend to test an ISDN point-to-point (PP) link or a
point-to-multipoint (PMP) link:
Ø Highlight LINE TYPE in the EMULATION screen.
Ø Use the LEFT and RIGHT arrow keys to choose
one of the following options:
Line Type
PP Test a Point to Point line, where one TE is connected at the
end of the cable
PMP Test a Point to Multipoint line, where up to eight terminals
can be connected in parallel along the bus
2
Notes
• The default is PMP.
• CorNet-N and QSIG do not support Point-to-
Multipoint operation.
Identifying the Protocol Master and Slave
To test ISDN protocol links, you need to identify whether
aurora
Duet
acts as the ‘master’ (exchange side) or ‘slave’
(customer side) of the network at Layer 2. To test fixed
links, you can set aurora
Duet
to operate without Layer 2
protocol.
Tip
Usually, when aurora
Duet
emulates a TE it acts as protocol
slave, and when emulating an NT or LT it acts as
protocol master. However, you can use the opposite
settings (
TE Master , NT Slave , LT Slave ), if required. For
example, you might use NT Slave in order to use
aurora
Duet
’s internal clock when the network clock is not
reliable.
Chap3s1.PM6 17/06/99, 09:36 9