
©2010 B&B Electronics. All rights reserved 
www.bb-elec.com orders@bb-elec.com support@bb-elec.com 
International Office: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104  
European Office: Westlink Commercial Park Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445 
PRODUCT INFORMATION                  B&B ELECTRONICS
EIR-EXTEND-C 
Ethernet Coaxial Extender for 10/100 Networks 
Extend Ethernet Coaxial Connections Up to 8530 Feet 
Functional Description 
The EIR-EXTEND-C is a point-to-point Ethernet Extender designed to operate in harsh environments 
making use of existing coaxial cable. Ethernet connections can be made up 8,530 feet using existing coaxial 
cable. The Ethernet Extender fully complies with IEEE 802.3 10BaseT and IEEE 802.3u 100BaseTX 
standards. The EIR-EXTEND-C functions at temperatures ranging from -40°C to 75°C (-40°F to 167°F) and 
is tested for functional operation @ -40°C to 85°C (-40°F to 185°F).  
The perfect solution for legacy surveillance infrastructure upgrades moving from analog to IP-based, as no 
new cable is needed - saving time, money and labor cost. Installation is easy with a single switch setting; 
one end is set for local and the other remote. The EIR-EXTEND-C is used in pairs, one at each end of your 
existing coaxial cable. 
  Features 
 One 10/100Base TX (TX) Ethernet port with RJ-45 connector  
 Auto negotiation of speed and duplex mode on TX port  
 Auto MDI/MDIX on Ethernet port  
 IEEE 802.3 10BaseT and IEEE 802.3u 100BaseTX compliant  
 Line port uses BNC connector or F-Type connector  
 Line port link is full-duplex up to 85Mbps over existing coaxial cable  
 One DIP switch for configuring local or remote mode  
 Status LED’s for monitoring and connection status  
 Redundant power inputs with Terminal Block and DC Jack 
Hardened 10/100BASE-TX Ethernet Copper Extender Over Coaxial Cable 
24VDC, 1.7A DIN Rail Power Supply, Slim-line 
Hardened AC Power Adaptor, 12VDC, 36W, US Plug 
Optional Panel Mount Kit for EIR-X series 
EIR-EXTEND-C-1212-ds - 1/4 
 

©2010 B&B Electronics. All rights reserved 
www.bb-elec.com orders@bb-elec.com support@bb-elec.com 
International Office: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104  
European Office: Westlink Commercial Park Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445 
PRODUCT INFORMATION                  B&B ELECTRONICS
Standards:       IEEE802.3 10Base-T, IEEE802.3u 100Base-TX, IEEE802.3x, Ethernet over VDSL 
Protocols:        Transparent to higher layer protocols 
Processing Type:  IEEE802.3x Full-duplex flow control 
RJ-45, 10/100Base-TX Full/Half-duplex Auto-Negotiation, Auto-MDI/MDIX 
10Base-T: UTP CAT. 3, 4, 5 (2-pair wire), 100Base-TX: UTP CAT. 5 (2-pair wire) 
1/5/10/20/30/40/50/60/70/75Mbps 
Coaxial Cable (5C2V / RG6AU) 
12 to 48VDC (Terminal 
Block); 12VDC (DC Jack) 
-40°C to 75°C (-40°F to 167°F) 
7.2W Max. 0.6A@12VDC, 
0.15A@48VDC 
-40°C to 85°C (-40°F to 185°F) 
5% to 95% (non-condensing) 
Reverse Polarity Protection: 
Parts count reliability prediction @ 25°C 
1.97" (W) x 4.33" (D) x 5.31" (H); 5.0cm (W) x 11.0cm (D) x 13.5cm (H) 
DIN-Rail (Top hat type 35mm), Panel Rack Mounting 
    EN55022, EN61000-3-2, EN61000-3-3 
EN61000-4-2 (ESD Standards) Contact: + / - 4KV; Criteria B Air: + / - 8KV; Criteria B 
EN61000-4-3 (Radiated RFI Standards) 10V/m, 80 to 1000MHz; 80% AM Criteria A 
EN61000-4-4 (Burst Standards) Signal Ports: + / 4KV; Criteria B D.C. Power Ports: + / 4KV; Criteria B 
EN61000-4-5 (Surge Standards) Signal Ports: + / - 2KV; Line-to-Line; Criteria B D.C. Power Ports: + / - 
0.5KV; Line-to-earth; Criteria B 
EN61000-4-6 (Induced RFI Standards) Signal Ports: 10Vrms @ 0.15~80MHz; 80% AM Criteria A D.C. 
Power Ports: 10Vrms @ 0.15~80MHz; 80% AM Criteria A 
EN61000-4-8 (Magnetic Field Standards) 30A/m @ 50, 60Hz; Criteria A  
Environmental Test Compliance: 
IEC60068-2-6 Fc (Vibration Resistance) 5g @ 10~150KHz, Amplitude 0.35mm (Operation/Storage/Transport) 
IEC60068-2-27 Ea (Shock) 25g @ 11ms (Half-Sine Shock Pulse; Operation) 50g @ 11ms (Half-Sine Shock 
Pulse; Storage/Transport) 
IEC60068-2-32 Ed (Free Fall) 1M (3.281ft.) 
EIR-EXTEND-C-1212-ds - 2/4 
 

©2010 B&B Electronics. All rights reserved 
www.bb-elec.com orders@bb-elec.com support@bb-elec.com 
International Office: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104  
European Office: Westlink Commercial Park Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445 
PRODUCT INFORMATION                  B&B ELECTRONICS
Top LEDs (BNC Line Connections) 
Front Panel LED’s (Ethernet and Line Connections) 
Valid Ethernet connection established             
Transmitting or receiving Ethernet data (ACT stands for ACTIVITY) 
No valid Ethernet connection nor transmitting/receiving Ethernet data 
  Ethernet connection in full duplex mode (FDX stands for FULL-DUPLEX) 
Ethernet connection in half-duplex mode 
A valid connection established between local & remote 
EIR-EXTEND-C-1212-ds - 3/4 
LED Indicators 
 

©2010 B&B Electronics. All rights reserved 
www.bb-elec.com orders@bb-elec.com support@bb-elec.com 
International Office: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104  
European Office: Westlink Commercial Park Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445 
PRODUCT INFORMATION                  B&B ELECTRONICS
EIR-EXTEND-C-1212-ds - 4/4 
Diagrams