MSAN-128 Zarlink Semiconductor, Inc., MSAN-128 Datasheet

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MSAN-128

Manufacturer Part Number
MSAN-128
Description
Implementing an ISDN Architecture Using the ST-BUS
Manufacturer
Zarlink Semiconductor, Inc.
Datasheet
• 1.0
• 2.0
• 3.0
• 4.0
• 5.0
(Type 2)
Telemetry
Printer
Terminal
(Type 1)
TE2
TE1
TE1
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
Digital
TE1
Set
Interfacing to the U Reference Point
Interfacing to the S0 Reference Point
Interfacing to the S1 and S2 Reference
Non-ISDN to ISDN Interworking
Voice Codecs
Link Layer Support
Switching
Time Base Generation
Introduction
ISDN Inf o rmation Channels
ST-BUS Frame Structure and
ST-BUS Family of ISDN
(Basic Rate)
Points (P rimary Rate)
(R Reference Point)
Conclusion
Nomenclature
Components
Table of Contents
Telemetry
Devices
R
Figure 1 - ISDN User Access Reference Model
TA
S
Subscriber Premises
NT2
NT12
T
INTERFACE
CEPT/T1
1.0 Introduction
The concept of the Integrated Services Digital
Network (ISDN) originated from the desire to provide
integrated services through better use of the
bandwidth potential in existing tele-communications
subscriber loops (loop plant).
technology and digital signal processing have made
high rate digital transmission to the subscriber's
premises not only possible, but also economical.
ISDN is the rationalization of the architecture of a
telecommunications network to support and utilize
this impr o ved capability .
One of the cornerstones of the ISDN concept is
international
addressed this requirement by defining a rigid
structure for subscriber access to an ISDN, at
several reference points.
specifications has been generated facilitating the
development of generic subscriber interfaces to
ISDN's for all applications.
timely implementation of ISDN’s will be enhanced by
the
standardized interfaces. Further, the economics of
scale and competition will reinforce this trend
through reduced costs of implementation. Figure 1
shows the ISDN User Network Access Model.
Implementing an ISDN Architecture
NT1
ubiquitous
Application Note
U
Primary Rate
Basic Rate
Subscriber
compatibility.
Access
S1/S2
Access
Line
connectivity
ISSUE 1
U
Using the ST-BUS
A corresponding set of
The acceptance and
LT
The
provided
MSAN-128
Advances in VLSI
Network
LT
V
CCITT
V
by
March 1987
ET
such
A-135
has

Related parts for MSAN-128

MSAN-128 Summary of contents

Page 1

... Figure 1 shows the ISDN User Network Access Model. NT12 S T NT2 NT1 Subscriber Premises CEPT/T1 INTERFACE MSAN-128 Using the ST-BUS ISSUE 1 March 1987 Advances in VLSI compatibility. The CCITT A corresponding set of The acceptance and connectivity ...

Page 2

theend-to-end ...

Page 3

... Link layer and network layer communication f) Circuit switching g) Time base generation CH. 0 CH Control B1 D Status B1 MSAN-128 TDM information transportation This is because control/status is Basic rate Figures 4 and 5 show the and basic rate device CH Don’t Care B2 High Z A-137 ...

Page 4

Frame Pulse CH. 31 CH. 0 Don’t Care B1 DSTi DSTo High Z B1 CDSTi Don’t Care CDSTo High Z Frame Pulse Out Figure 5 - ST-BUS Basic Rate Channel Structure for the MT8972 (Dual Port Mode considered ...

Page 5

Application Note wire pair, and the method for achieving full duplex transmission is adaptive echo cancellation. The 160 kbit/s rate is divided into two B-channels, one D- channel (D16), and 16 kbit/s OAM (Operations, Administration and Maintenance) information. The line ...

Page 6

MT8972 BASIC RATE 15 LINE CARD F0o U C4 CDSTi CDSTo DSTi DSTo F0 MT8972 14 F0o U C4 CDSTi CDSTo DSTi DSTo F0 MT8972 0 F0o U C4 CDSTi CDSTo DSTi DSTo F0 Figure 6 - Typical Exchange, PBX ...

Page 7

... B-channel. Any bit rate below 8 kbit/s only needs one bit in an eight bit ST-BUS channel kbit/s bit rates need two bits kbit/s bit rates need four bits, and kbit/s MSAN-128 NT1 ST-BUS MT8 MT8 ...

Page 8

The MH89500 (a one channel device) allows specification of which bits in the ST-BUS channel it uses. This capability allows up to eight MH89500 connected in parallel, submultiplexing information into a common channel. ...

Page 9

... The PA/D function is built into the MT8930 for TE applications. ST-BUS MT8994/5 MT8972 DSTo DSTi DSTi DSTo F0i F0/CLD C4i C4/TCK MT8952B (PA/D) C4i F0i DSTi DSTo C MSAN-128 Bit positions and channel channel 0 (D channel Network applications U A-143 ...

Page 10

... MSAN-128 The MT8972 does not have incorporated into it at present because the current definition of the ISDN Subscriber Access Model promotes the use of the S reference point in TE’s, with the U reference point connected to Modem-like NT equipment and the network. 4.7 Switching In larger ISDN systems, ...

Page 11

North America - West Coast Tel: (858) 675-3400 Fax: (858) 675-3450 Tel: +65 333 6193 Fax: +65 333 6192 Information relating to products and services furnished herein by Zarlink Semiconductor Inc. trading as Zarlink Semiconductor or its subsidiaries (collectively “Zarlink”) ...

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