Chapter 3 System Features
Channelized STS-1e (T1) Module
3-46
255-700-025
PacketStar
™
Access Concentrator 60 User Guide
, Issue 1
Release 6.3.0
•
Private Network-Network Interface (PNNI), Specification Version 1.0
, af-pnni-
0055.000
•
Integrated Local Management Interface (ILMI) Specification Version 4.0, af-ilmi-
0065.000
The following services and functions are available:
•
ATM services (channelized and unchannelized) with ATM traffic policing
(UPC support) capability:
~
ATM UNI 3.0 and 3.1, with integrated link management interface
(ILMI) capability
~
Interim inter-switch signaling protocol (IISP) user and IISP network
~
ATM private network-node interface (PNNI)
•
Circuit emulation service (CES):
~
Unstructured and structured DS1 signal transport
~
Nx64 Kbps circuit emulation (where 1=N=24)
~
Dynamic bandwidth circuit emulation service (DBCES)—proprietary
version
~
Channel-associated signalling (CAS)
•
Integrated services digital network with primary rate interface service
(PRI ISDN) with 64 Kbps clear channel capability and HDLC passthrough
mode for the D-channel
•
Frame relay UNI and NNI with frame relay policing (ITU-T I.370)
capability
•
High-level data link link control (HDLC) passthrough mode (Nx64)
•
AAL2 cell formatting is provided for interworking with the DSP2A,
DSP2B, and DSP2C Voice Server modules.
•
Mixed circuit emulation, ATM, and frame relay channels can be
configured within a virtual DS1 port.
Hardware Features
•
Number of ports: one
•
Connector type: two BNC connectors, one to receive data and one to
transmit data
•
Line rate: 44.736 Mbps
Channelized STS-1e (T1) Module
The Channelized STS-1e T1 module provides one port with a line rate of
51.84 Mbps. The user can configure this module to provide n X 64 Kbps
(fractional DS-1) structured circuit-emulation service. When configured for
DS-1 circuit-emulation service, the module interfaces with TDM channelized
DS-1 circuits. It converts the channelized digital signals (usually voice data)
to ATM virtual channels. By using structured (channelized) circuit