Instruction manual

Chapter 3. Application Configuration
3-12 Express 3010/3110 User Manual 61200239L1-20
BONDING Mode 1
The
BONDING mode 1
protocol allows the Express to communicate
at bit rates in excess of 64 kbps to a maximum of 128 kbps. The proto-
col allows use of both synchronous and asynchronous bit rates. When
the Express uses the
BONDING mode 1
protocol, it must make two
separate ISDN phone calls to seize control of both ISDN bearer chan-
nels. The protocol corrects any delays existing between the two bearer
channels and presents a single high-speed data channel to the DTE.
For successful high-speed operation, both the near- and far-end DCE
need to be configured to use the
BONDING mode 1
protocol. The
BONDING mode 1
protocol negotiation phase has numerous timers
to allow transmission delays due to satellite hops, international calls,
etc. The timers may be adjusted if necessary by entering into the
BONDING mode 1
submenu.
V.120
The
V.120
protocol is a CCITT- compliant rate adaption method which
provides DTE service between the Express and other V.120 compliant
devices at DTE rates less than the 64 kbps ISDN Bearer channel rate.
V.120 supports synchronous and asynchronous DTE rates. See the
section
Recommended Operating Protocols
on page 1-3 and Table 1-1 on
page 1-4 for available V.120 rates.
V.110
The
V.110
protocol is a CCITT- compliant rate adaption method which
provides DTE service between the Express and other V.110 compliant
devices. V.110 supports synchronous and asynchronous DTE rates.
See the section
Recommended Operating Protocols
on page 1-3 (in Chap-
ter 1) and Table 1-1 on page 1-4 for available V.110 rates.
FALLBACK
The
FALLBACK
asynchronous rate-adaption protocol provides the
capability to automatically establish calls with other ISDN terminal
adapters, Switched 56 DSUs, PPP-compatible bridges/routers, as well