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Table 1-b recommended operating modes, Chapter 1. understanding isdn and the isu 128 – ADTRAN ISU 128 User Manual

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Chapter 1. Understanding ISDN and the ISU 128

61202.029L2-1

ISU 128 User Manual

7

Table 1-B

Recommended Operating Modes

1.

All asynchronous rates support flow control.

2.

All dial-up modes support front panel, DTR, RS-366, AT command, and V.25 bis dialing
methods.

3.

Rates marked with

f

require flow control.

4.

Given a choice between two protocols, pick the protocol closer to the top of the list.

5.

Multilink PPP supports the same rates as single-link PPP async-sync. Use the recom-
mended rates for PPP async-sync.

Call Type

Protocol

Sync/
Async

Rates Supported (bps)

DIAL-64K

BONDING

Sync

56000

64000

Clear Chan

Sync

48000

56000

64000

PPP

Sync

2400

4800

9600

19200 38400 56000 64000

V.110

Sync

2400

4800

9600

19200 38400

V.120

Sync

9600

19200

38400

48000

Tlink

Sync

2400

4800

9600

19200 56000 64000

SAP

Sync

38400

PPP async-sync

Async

1200

2400

4800

9600

19200 38400 57600

115200

f

BONDING

Async

2400

4800

9600

19200 38400 57600

V.110

Async

1200

2400

4800

9600

19200 38400

v

V.120

Async

1200

2400

4800

9600

19200 38400 57600

115200

f

Tlink

Async

1200

2400

4800

9600

19200

SAP

Async

38400

57600

115200

f

DIAL-56K

BONDING

Sync

56000

Clear Chan

Sync

48000

56000

PPP

Sync

2400

4800

9600

19200 38400 56000

V.110

Sync

2400

4800

9600

19200

V.120

Sync

9600

19200

38400

48000

Tlink

Sync

2400

4800

9600

19200 56000

PPP async-sync

Async

1200

2400

4800

9600

19200 38400 57600

115200

f

BONDING

Async

2400

4800

9600

19200 38400 57600

DSU 57.6

Async

57600

V.110

Async

1200

2400

4800

9600

19200

V.120

Async

1200

2400

4800

9600

19200 38400 57600

115200

f

Tlink

Async

1200

2400

4800

9600

19200

DIAL-64K*2

BONDING

Sync

128000

MPPP

Sync

128000

MPPP

Async

115200

f

BONDING

Async

115200

f

DIAL-56K*2

BONDING

Sync

112000

MPPP

Sync

112000

MPPP

Async

115200

f

BONDING

Async

115200

f

LEASED 64K

Clear Chan

Sync

48000

56000

64000

SAP

Sync

2400

4800

9600

19200 38400

DSU 57.6

Async

57600

SAP

Async

1200

2400

4800

9600

19200 38400 57600

f

115200

f

LEASED 128K Clear Chan

Sync

128000

SAP

Async

57600

f

115200

f