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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