Silicon Laboratories SI2493/57/34/15/04 - Manual (Page 2)

Si2493/57/34/15/04
Global ISOmodem-EVB
2 Rev. 0.6
1. Si2493/57/34/15/04-EVB Setup and
Evaluation
This section explains how to set up the Si2493/57/34/
15/04-EVB for evaluation as an RS-232 or USB
interface modem. Jumper settings, power connection,
PC/terminal connections, and terminal program
configuration settings are given. The initial modem
setup after power is applied as well as a basic tutorial
on modem operation are provided. Si2493/57/34/15/04-
EVB configurations for evaluating additional features
are discussed separately. See the Si2493/57/34/15 or
Si2404 data sheets and “AN93: Si2493/57/34/15/04/04
Modem Designer’s Guide” for complete details.
1.1. Si2493/57/34/15/04-EVB Quick Start—
RS-232 Interface
1. Set jumpers according to Figure 1 or Figure 2.
2. Connect:
DB-9 to PC COM 1 (with a pass-through cable).
RJ-11 to phone line or test box.
9 V ac adaptor (or USB cable).
3. Bring up:
Turn on power to modem.
Autobaud automatically adjusts modem DTE speed and
protocol.
4. Type “AT” followed by a carriage return.
Should echo “AT” and then an “OK”.
1.2. Si2493/57/34/15/04-EVB Quick Start—
USB Interface
1. Set jumpers according to Figure 3 or Figure 4.
2. Connect:
USB cable to PC
RJ-11 to phone line or test box
3. Download USB driver for your operating system from the
CD supplied with the evaluation board.
4. Install driver.
5. Bring up.
Reset the modem.
Autobaud automatically adjusts modem DTE speed and
protocol.
6. Type “AT” followed by a carriage return.
Should echo “AT” and then an “OK”.
1.3. Jumper Settings
Check all jumper settings on the Si2493/57/34/15/04-
EVB before applying power. The standard factory
jumper settings for the FT package are shown in
Figure 1; the FS package is shown in Figure 2. These
settings configure the Si2493/57/34/15/04-EVB for RS-
232 serial operation with autobaud. Any standard
terminal program configured to communicate through a
PC COM port can be used to communicate with the
Si2493/57/34/15/04-EVB. The standard factory jumper
settings for USB operation with the FT package are
shown in Figure 3; the FS package is shown in Figure 4.
The only difference between RS-232 and USB jumper
settings is that JP5 must be installed to enable USB.
Figure 1. Standard Factory Jumper Settings—RS-232 Interface (Outlined in Gray) (FT Option)