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Chapter 2. Installation
Set Chain Port Input
The TSU 120 can be configured from the chain port input when
T-WATCH Pro, SNMP, or the terminal interface are being used.
In this case, the chain port baud rate must also be selected.
Chain-In (PC)
The unit can be controlled from an external PC connected
directly or via modem to the chain-in port. When using chain-
in, the selection of the chain-in port baud rate from 9600 (fac-
tory default), 1200, 2400, 19200, or 38400 must be made using
the U
details.
Unless locked out externally, the front panel can also control
the unit.
Chain-in/Chain Out
TSU 120 units and other TSUs can be linked together to form a
chain. Figure 2-4 provides an example of a chain-in arrange-
ment with a PC or a modem. The first TSU 120 in the chain
receives controlling input from the PC or modem.
PC or Modem
Chain
Input
TSU 120
Subsequent TSUs in the chain are in a position to intake infor-
mation from another TSU. This in-taking of information from
another TSU in the chain is identified as chain-in. The baud
rate for the chained units must match that of the first unit.
Unless locked out externally, the front panel can also control
the unit.
2-8
C
NIT
ONFIGURATION
Chain
Chain
Out
In
TSU 120/
TSU 100/TSU
Figure 2-4. Example of Chain-in
TSU 120 User Manual
. See Unit Menu on page 5-12 for
M
ENU
Chain
Chain
In
Out
TSU 120/
TSU 100/TSU
Chain
Out
61202129L1-1
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