Computer Hardware User Manual
  Hardware Overview 
Manual Documentation Number: PES1A/PESV1A-4905m  5 
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 Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com 
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Package Checklist 
PES1A/PESV1A PoE Ethernet to RS-232 Converters are shipped with the 
following items included: 
9  The PES1A or PESV1A module 
9  A printed version of this user manual 
9  A printed version of the PES1A/PESV1A Quick Start Guide 
9  CD-ROM disc with 
o  B&B discovery software 
o  RealPort drivers for Windows 98/ME/2000/XP/NT 4.0 
o  this manual in pdf format 
o  a Quick Start guide in pdf format 
Power Over Ethernet
to RS-232 Converter
Model PES1A
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Figure 2.  Top View of the PES1A Converter 
Figure 3.  Top View of the PESV1A Converter 
 Hardware Overview 
6  Manual Documentation Number: PES1A/PESV1A-4905m 
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 Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com 
Indicators, Switches and Connectors 
Link Integrity LED (Yellow) 
When the yellow LED located on the Ethernet jack is illuminated it indicates 
that a connection (link integrity) has been established between the converter 
and a node on the network. 
Network Activity LED 
When the green LED located on the Ethernet jack is flashing it indicates 
data is being sent across the network. 
Figure 4.  LED Indicators on the PES1A 
Reset Switch 
The Reset switch is a recessed switch located on the RJ-45 end of the PES1A 
and on the side of the PESV1A. The Reset switch provides two functions: 
Press and release within 10 seconds  Resets the PES1A/PESV1A 
Press and hold for more than 10 seconds 
while powering up 
Reloads factory default values 
Voltage Output Selector Switch (PESV1A only) 
A three-position slide switch located on the side of the PESV1A allows you 
to select the voltage output (available on the two position terminal block). 
The three voltages available are: 
•  5 VDC 
•  9 VDC 
•  12 VDC 










