B&B Electronics ESR902 User Manual

Page of 90
Making the Hardware Connections 
12 
 Chapter 2 
Manual Documentation Number: ESR90x-0508m 
B&B Electronics Mfg Co Inc – 707 Dayton Rd - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com 
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com 
Default Mode 
When 
Default Mode
 is selected and the server properties are 
Updated
 
(
Saved
) all the configuration settings return to their default values. 
N
N
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:
 
 
 
 
Refer to Chapter 5 for details on Serial Server Configuration settings. See 
Chapter 12 for Serial Server default parameters. 
Console Mode 
In 
Console Mode
 the 
Configuration Menu
 can be accessed from a PC by 
connecting its RS-232 serial port to the ESR901 serial port or ESR902/904 
Serial Port 1. Since the computer is a DTE device, and the serial ports are 
configured as DTEs (with DB-9M connectors), a null modem crossover cable 
must be used.  
In 
Console Mode
 the default serial port settings are: 
9600
 baud, 
8 data bits
No parity
, and 
1 stop bit
. From Windows, HyperTerminal with VT100 
terminal emulation can be used for 
Console Mode
 configuration. 
N
N
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Refer to Chapter 9 for details on Console Mode 
Upgrade Mode 
In 
Upgrade Mode
 firmware can be uploaded from a PC via its serial port to 
the ESR901 serial port or ESR902/904 Serial Port 1. Upgrading also can be 
accomplished via the network connection, using the ESP Manager software 
and a virtual COM port. 
 
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N
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Refer to Chapter 8 for details on Upgrade Mode 
RS-232 Mode 
In 
RS-232 Mode 
the currently selected serial port is configured as an RS-232 
interface supporting eight RS-232 signal lines plus Signal Ground and is 
configured as a DTE, like a computer. Signals are single ended and 
referenced to Ground. To use handshaking, Flow Control must be set to 
RTS/CTS during configuration.