Kentrox DataSMART T3/E3 IDSU, Руководство по установке, Страница: 35 / 52

Configuring units via a daisy-chain 35
Using the DTE
control port
Cable the daisy-chained units as shown in Figure 9 when you plan to access the first unit
in the chain via a modem connected to unit’s rear-panel DTE control port.
Figure 9—Cabling daisy-chained units through a modem
Use cable 930
xx
241 (EIA-561 to EIA-561)) for the daisy chaining.
To set up a daisy-chain of IDSUs, perform the following procedures.
Procedure 1
1
Set the baud rate, parity, data and stop bits correctly of the IDSU, as specified on
page 17 .
2 Connect the power cord and power on the unit, as specified on page 22 .
3 Press the Enter key. This logs you into the unit and brings up the Main menu.
4 Enter the command SA:xx:yy:zzz to set the unit’s daisy-chain address. Do not use
address 00:00:000 (this is the default address of all the units).
xx = 0 - 15
yy = 0 - 15
zzz = 0 - 255
5
Enter the DTE command to switch the alarm message port from the DCE port to the
DTE port.
6 Log out (enter <Ctrl-D>).
7 Disconnect the ASCII terminal from the DCE port.
8 Connect the modem to the DTE port.
DCE DTE
DCE DTE
DCE DTE
DTE
Modem Modem
DCE DCE