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Electronics

For technical assistance

call: 

323-465-2131

CALRAD

R

Part No.

 72-148

Long Distance

Cat5e/Cat6

Ethernet Extender

10/100Mbps

Copyright C

ALRAD

 E

LECTRONICS

 2020

All specifications subject to change without notice

Product Brochure

Power Supplies

The 

72-148

 provides a simple solution for providing ethernet connectivity over long distances using Cat5e/Cat6 UTP cabling. Extends 

any networking devices up to over 1,600 ft. at 100Mbps supports Full Duplex and Half Duplex modes. The 

72-148

 is completely 

transparent to all protocols and applications. Works with IP CCTV camera’s, VOIP Phones and all consumer based IP technologies 
like Computers, Smart TV’s, Digital STB’s, Network Switches, Wireless Access Points, etc.. Includes two Bi-directional Transmitter 
and Receiver units each unit acts as a Transmitter and or Receiver. Easy to configure dip switches for connectivity options. 1 x L.E.D. 
Power Indicator, 2 x Mode settings L.E.D. indicators, 2 x RJ45 network data L.E.D. indicators. Includes 2 x 

72-148

 

Transmitter\Receiver units, 2 x 12Vdc power supplies.

Typical Hookup    

Features \ Technology     

For all the latest product information visit our website at: www.calrad.com

2 x 72-148 Ethernet Extenders
2 x DC Power Supplies

Specifications

Copyright C

ALRAD

 E

LECTRONICS

 2020

All specifications subject to change without notice

Package Contents

Function

Settings

(Dip Switches)

Power
12Vdc

Power
12Vdc

Function

Settings

(Dip Switches)

L.E.D.

Indicators

L.E.D.

Indicators

Ethernet

In/Out Jack

Network Data

Green, Yellow

Status L.E.D.’s

Ethernet

In/Out Jack

Ethernet

In/Out Jack

Ethernet

In/Out Jack

Cat5e, Cat6 Cable

NVR

SWITCH

IP CAMERA

COMPUTER

(Point to Point Transmission)

Cat5e, Cat6

UTP Cable

Cat5e, Cat6

UTP Cable

MAX

100 Mbps

10 Mbps

1,650 ft.

MAX

100 Mbps

10 Mbps

429 ft.
825 ft.

MAX

100 Mbps

10 Mbps

429 ft.
825 ft.

2,640 ft.

Front View

Rear View

100M

100M

10M

10M

1

2

1

ON

2 3 4

SETTING

DC 12V

+

ON

MODE

MODE

1

2

12Vdc
Power

Supply

12Vdc
Power

Supply

Example(A)

Example(B)

Example(A)

Example(B)

Network Standards: 

IEEE 802.3 10 BASE-T Ethernet, IEEE 802.3u 100BASE-TX Fast Internet, IEEE 

802.3 bw 100BASE-T1 Ethernet, IEEE 802.3 Nway Auto-Negotiation, IEEE 802.3x Full Duplex 
Operation and Flow Control, IEEE 802.3az Energy Efficient Ethernet.

Data Rate:

 10Mbps \ 100Mbps

Cable Type:

 Works using Cat5e, Cat6 cable

Cable Distance, Solid Conductor Cat5e (Max): 

100BASET-TX (

429 ft.

) / 10BASE-T (

825 ft.

), 

100BASE-T1 (

900 ft.

), Long Distance 100 Mbps (

1,650 ft.

) / 10 Mbps (

2,640 ft.

).

Ethernet Connector:

 2 x RJ45 Jack, Built-in 1.5KV (Line to Line) Surge Protection

Panel L.E.D. Indicators: 

Green (

Power

), Blue (

Mode1, Mode2

)

Ethernet RJ45 L.E.D. Indicators: 

100 Mbps (

Green

), 10 Mbps (

Yellow

)

Power Supply: 

2 x 12Vdc, 0.5Amps

Dimensions:

 L-3.55” x W-1.93” x H-1.0”,

Color: 

Black, 

Mounting:

 Single Mounting tab with 3 holes

Ethernet Extender

1

ON

2 3 4

CALRAD

Part No. 

72-148

Long Range Ethernet Extender

Transmitter\Receiver

Cat5e/Cat6
10/100Mbps

Auto Detection

(Default)

Ethernet Extender

1

ON

2 3 4

CALRAD

Part No. 

72-148

Long Range Ethernet Extender

Transmitter\Receiver

Cat5e/Cat6
10/100Mbps

Auto Detection

(Default)

Transmitter\ Receiver

Transmitter\ Receiver

72-148-02228020-WB

Extend Ethernet up

to over 4,200 ft.

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 72-148

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