Nortel Meridian 1 Planning, Installation And Operating Instructions page 146

Chapter 15 – Installing and connecting SDI and Ethernet ports
Table 12
Modem problems
Problem
CDR is not printing on an ESDI port
configured as 8 bits, no parity, and 1 stop
bit.
Modem is not communicating with the
Option 11C Compact system when the
User is MTC, BUG or CTY
(The default setting of 8 bits, no parity, 1
stop bit is incompatible with the modem).
Option 11C Compact
Table 12 lists some of the problems that may be encountered.
Solution
Change the modem set-up to 7 bits, no parity, 1
stop bit, or add MTC or SCH to the ESDI user
prompt.
Change the modem set-up to 7 bits or the parity
to EVEN/ODD.
Planning, Installation, Fault Clearing and CCBR Guide
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