Kentrox DataSMART T3/E3 IDSU, Руководство по установке

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Connecting the rear-panel control ports 31
Connecting the rear-panel control ports
You can connect a local ASCII terminal or laptop to the rear-panel DCE control port, or
you can connect a distant terminal via a pair of modems to the DTE port.
The DataSMART T3/E3 IDSU control ports are set to the following defaults: 9600 baud, 8
data-bits-per-character, 1-stop bit-per-character, and no parity. You must either set your
terminal to match the port settings or change the port settings to match your
terminal settings.
Procedures for changing the control port settings are provided on page 17 .
The cables named in the figure above can also be used to connect the unit to:
■ A PC using a 9-pin serial interface
■ A modem using the 9-pin connector
■ Other units in a daisy chain
Pinouts for control ports
See Table 3 on page 46 .
Signal requirements for control ports
For the DCE port on the rear panel, the signals DTR and RTS must be asserted by the data
terminal equipment. If these signals are not asserted, the IDSU will not communicate over
the DCE port.
For the DTE port on the rear panel, the signals DSR and CTS/DCD must be asserted by
the data terminal equipment. If these signals are not asserted, the IDSU will not communi-
cate over the DTE port.
Cables and adapters
Part number Description
930 xx 241 EIA-561 to EIA-561 (EIA-232D)
78899001 DB9S to RJ45S
P = plug (male); S = socket (female)
Control ports