Specifications

108
CSU/DSU MS DBU
Appendix D. Configuration Profiles
The CSU/DSU MS DBU contains four different user profiles (sets of configuration
options) stored in read-only memory; see Table D-1. The unit is shipped from the
factory with profile 1 loaded into the nonvolatile configuration memory. See
Section 11.1 for more information on entering the manual commands required
to load these profiles.
P ROFILE 1
Profile 1 is configured for a 56-kbps, synchronous, point-to-point or dial-up
operation with a V.35 connector. Automatic DBU has been disabled for this
configuration profile.
P ROFILE 2
Use profile 2 for a 56-kbps, asynchronous, point-to-point or dial-up operation,
with an EIA-232 connector. Automatic DBU has been disabled for this
configuration profile.
P ROFILES 3 AND 4
Profiles 3 and 4 are identical to profile 1 with the addition of dial-backup
capability. These profiles are used for enabling dial backup using two CSU/DSU
MS DBU. One must be set for Answer and the other for Originate. Use profile 3
to set the remote unit to Answer and profile 4 to set the host unit to Originate.
Table D-1. Configuration Profiles
Profile Numbers
(00) 1 (01) 2 (02) 3 (03) 4
Manual Command
Escape Character 43=2BH 43=2BH 43=2BH 43=2BH
CR Character 13=0DH 13=0DH 13=0DH 13=0DH
LF Character 10=0AH 10=0AH 10=0AH 10=0AH
BS Character 8 8 8 8
DBU Abort Call Timer 50=32H 50=32H 50=32H 50=32H
Escape Guard Timer 50=32H 50=32H 50=32H 50=32H
Command Echo Enable Enable Enable Enable
Result Code Enable Enable Enable Enable
Long or Short Code Long Long Long Long