Broadband Analyzer/Generator
3
Signaling
The instrument simulates the signaling functions of a terminal on the user-network interface
(UNI). Up to 4 connections can be switched simultaneously.
"Channel associated signaling" can be selected as an option. Subaddresses can also be
optionally used.
Signaling standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ITU-T recommendation Q. 2931,
Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Calling", "Called", "Self Call"
Adress formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Native E. 164,
Signaling channel (VPI/VCI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .user definable
1 Only possible if ITU-T recommendation Q. 2931 protocol is selected.
3.1
Traffic Contracts
Traffic types . . . . . . . . . . . . . . . . . . . . . . "CBR", "DBR", "UBR", "VBR-RT", "VBR-nRT", "SBR"
Quality of Service classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1, 2, 3, 4
Connection type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . point-to-point
Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bi-directional, symmetrical
1 CBR: "Constant Bit Rate", DBR: "Deterministic Bit Rate", UBR: "Unspecified Bit Rate", VBR-RT: "Variable Bit Rate -
Real Time", VBR-nRT: "Variable Bit Rate - non Real Time", SBR: "Statistical Bit Rate".
CBR, UBR, VBR-RT and VBR-nRT are ATM Forum traffic types. SBR and DBR are ITU "Bearer Capabilities.
3.2
Signaling Analysis
Detection and display of the connection status of up to 4 connections simultaneously.
Displayed states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . disconnected, connecting, connected
Measurement of the connection setup time ("Channel Setup Time").
S-12
ANT-20/ANT-20E
ITU-T recommendation Q. 2961,
ATM Forum recommendation UNI 3.0,
ATM Forum recommendation UNI 3.1
bi-directional asymmetric
Specifications "ATM Layer"
NSAP ICD,
NSAP DCC,
NSAP E.164,
NSAP E.191
1
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