Kentrox DataSMART T3/E3 IDSU, Installation Manual, Page: 33 / 52

Configuring units via a daisy-chain 33
Configuring units via a daisy-chain
Daisy-chaining allows you a single point of control for many units. The manner in which
you cable the units together depends on whether you are using a DCE or DTE control port.
Using the DCE
control port Make sure the physical communications parameters (baud rate, data bits, stop bits, etc.)
for all ports are set up identically.
Cable the daisy-chained units as shown in Figure 8 when you plan to access the first unit
in the chain via a terminal connected to the unit’s front-panel craft port or rear-panel DCE
control port.
Figure 8—Cabling daisy-chained units when using a DCE control port
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 Attach an ASCII terminal to the DCE port of the first unit. Do not connect anything
to the DTE port of this unit.
4
On your terminal (or in your terminal emulation window) press the Enter key. This
logs you into the unit and brings up the Main menu.
5 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
6
Log out (enter <Ctrl-D>).
DCE DTE
DCE DTE
DCE DTE
DTE