The Capi 2.0 Driver - ELSA MicroLink ISDN/PCC-16 User Manual

Appendix: The CAPI Drivers
Implemented B channel
protocols
Additional B channel
protocols
Multiple Subscriber
Number conversion
for Euro-ISDN
Semi-permanent
connections (1TR6)

The CAPI 2.0 Driver

Implementation
details
26
When using the DSS1CAPI or ISDNCAPI driver:
B channel layer 2: X.75, V.120, HDLC-transparent, bit transparent
B channel layer 3: Transparent, T.70NL, ISO 8208, T.90
Additional when using the DSS1CAPX or ISDNCAPX driver:
B channel layer 3: ISO 8208, T.90
Additional to the B channel protocols defined by the CAPI 1.1, the following B2
protocols are supported:
B2 Protocol B2 Protocols
No.
8 HDLC transparent 56,000 bps
21 X.75 with 56,000 bps
22 V.120 asynchronous with 64,000 bps (max. block length
259 Bytes)
23 V.120 asynchronous with 56,000 bps (max. block length
259 Bytes)
24 V.120 asynchronous with 64,000 bps, 7 bit/character (max.
block length 259 Bytes)
25 V.120 asynchronous with 56,000 bps, 7 bit/character (max.
block length 259 Bytes)
Multiple Subscriber Numbers (MSN) are supported by the CAPI interface
(version 1.1) via an internal conversion procedure. The configuration is
performed according to the parameters /e and /n<eaz>=<msn> (see
page 34).
Semi-permanent connections are supported by the German 1TR6 protocol
only. To establish a semi-permanent connection, an 's' or a hyphen '-' must be
appended to the subscriber number.
The supplied CAPI 2.0 drivers support CAPI version 2.0, release date
February, 1994, with the following limits:
Two input buffers for request and responses with 384 bytes each.
n
Both B channels can be used simultaneously and independent of one-
n
another for ISDN communications, not only within a single application
but also by different applications.
One B3 connection (NCCI) can be established per B channel (PLCI).
n
Up to 64 B3 data buffers (per data direction) can be requested.
n
Up to 8 applications can be registered simultaneously.
n
MicroLink ISDN/PCC-16 Manual © 1997 ELSA GmbH