User manual
    ESP901 and ESP902 Technical Data 
Manual Documentation Number: ESP901-902_4105m   Chapter 12  69 
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com 
B&B Electronics Ltd – Westlink Commercial Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com 
Default Server 
Settings 
Server Name    ESP901 or ESP902 
Serial Number:    xxxxxxxxx (printed on bottom of 
unit) 
Password:   Blank 
DHCP:  Disable 
IP Address:  192.168.0.1 
Net Mask:  255.255.255.0 
Gateway: 192.168.0.254 
MAC Address:    Fixed – see bottom label 
Version&Date:  current firmware version number & 
date 
Serial server port:  1  
Baud Rate:  9600 
Data//Stop:  8-1 
Parity:    None 
Flow Control:  None 
TCP/UDP Protocol:  ESP901 serial port: TCP  
 ESP902 Ports 1 & 2: TCP   
Serial timeout:    0 seconds 
TCP alive timeout: 0 minutes 
Connection Mode:  Server 
Delimiter HEX 1:  00 
Delimiter HEX 2:  00 
Force transmit:    0 ms 
TCP/UDP port:    ESP901 serial port: 4000 
 ESP902 Port 1: 4000 
 ESP902 Port 2: 4001 
Serial port mode:    Console 
Max connection:    1 
Remote IP Address: 255.255.255.255 
ESP901 and ESP902 Technical Data 
70  Chapter 12  Manual Documentation Number: ESP901-902_4105m 
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com 
B&B Electronics Ltd – Westlink Commercial Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com 
Figure 58.  Dimensional Diagram of the ESP901 
Figure 59.  Dimensional Diagram of the ESP902 










