DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19 19
3.3. Configurations for Management via the Terminal Port
Always use this system when new equipment is inserted into the ring or in cases when it is necessary to
alter the topology of the operation. For more information about how to connect the serial cable, consult
chapter 3.
Changes in the operation topology may cause the loss of data during configuration since it involves
changes in the interface data flow. New topology configurations may also momentarily or permanently
disconnect the management of ring configurations.
The insertion of new ring topology equipment only causes the loss of data during the physical insertion of
the equipment. Then the backup option is active, the removal of equipment is seen as a failure, and the
loss of data is only momentary. If the equipment has been configured correctly, management should
function normally.
The below described configurations should be made locally (direct connection through the equipment
Terminal port) before field installation:
• All the equipment must be functioning with the same topology configurations. Different topology
configurations alter the normal flow of data, which makes management impossible.
• Correct configuration of MAIN / BACKUP aggregate cards. Errors in this configuration can cause
the isolation of equipment in the ring, or loss of the management link. It is recommended not to
alter factory values for these parameters (MAIN card in slot AG1 and BACKUP card in slot AG2).
• Tests should be deactivated in all aggregates. Test activation in remote aggregates causes the
equipment to ignore management information. Aggregate tests can only be deactivated locally.
3.4. Configurations of the Terminal Serial Interface
The terminal must be configured for 9600bit/s, without flow control, 1 stop bit and without parity bit. When
configuration is done with Windows 2000, it is recommended not to use the HyperTerminal, as it
presents some functional problems on this platform. Therefore, the use of Tera Term Pro, a freeware
software, is recommended. It can be downloaded at the following electronic address:
http://www.vector.co.jp/authors/VA002416/teraterm.html
If possible, the option to send characters automatically (without pressing ENTER) should be selected in the
emulation software.
The Terminal authentication screen is represented below:
# -------------------------------------------------------------------------
# DataCom Telematica – DM16E1 Multiplexer
#
# -------------------------------------------------------------------------
#
#
#
#
# Password: [ ]
#
#
#
#
#
#
#
#
#
#
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