B&B Electronics ESP901E Benutzerhandbuch

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Making Hardware Connections 
Manual Documentation Number: ESP901-902-3704 
Chapter 2 
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 
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Package Checklist 
ESP901 and ESP902 Serial Servers
 are shipped with the following 
items included: 
9
  ESP901 or ESP902 Serial Server Module 
9
  Power supply 
9
  This Operation Manual 
9
  CD-ROM disc with manual, VLINX ESP Manager and Virtual 
COM Driver software for Windows 98/ME/2000/XP/NT 4.0 
 
ESP901/ESP902 Connections, Indicators and 
Reset Switch 
Connectors, Indicators and Switches: 
•  Three indicator LEDs  
•  One Ethernet connector (RJ-45 female) 
•  A power connector 
•  A recessed reset switch  
•  Triple DIP switch 
•  ESP901: One serial port connector (DB-9M) 
•  ESP902: Two serial port connectors  (DB-9M) 
Making Hardware Connections 
10 
 Chapter 2 
Manual Documentation Number: ESP901-902-3704 
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 
 
Indicator Lights 
Light Indication 
Power 
Red - power is applied 
Link 
Yellow – 10BaseT Ethernet connection established 
Green – 100BaseTX Ethernet connection established 
Ready 
Flashing Green – system is ready  
Figure 5. 
Indicator Lights 
Ethernet Connector 
The 
Serial Server
 has a standard RJ-45 receptacle mounted in the top 
edge of the chassis. The 
Serial Server
 can be connected to an Ethernet 
hub, switch, or wall plate using a standard straight-through RJ-45 
(male) Ethernet cable. To connect directly to an RJ45 Ethernet port on 
a PC or laptop a crossover Ethernet cable must be used.
 
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Refer to Appendix D for details on Network Cables 
Power Connector 
Plug the ultra-miniature phone plug from the included power supply 
into the power jack and then plug the supply in. When power is applied 
the Red power light will illuminate. The tip of the power plug is 
positive; the sleeve is negative.  
Reset Button 
This switch resets the unit, similar to the effect of removing/applying 
power. The Reset switch is recessed to avoid accidental operation. To 
reset the unit, insert a small plastic tool, press lightly and hold for three 
seconds. The Link and Ready lights will go out and then come back on.  
RJ-45
female
Reset
Power jack
2.5 mm Tip (+)
Off
 
Figure 6. 
Top View of ESP901 and ESP902 (when mounted vertically)