40PT1041RX LF 40Pin 100Base-T 4 Port LAN Transformer Network Ethernet Filter 

Categories	Transformers
	Network Transforme
Transformer Type	ETHERNET(NoN POE)
PIN Contacts	48
Number of Ports	Dual Port
Mounting Type	DIP
Turns Ratio - Primary:Secondary	1CT:1CT
Packaging	Tube
Operating Temperature	-40°C ~ 85°C
Comment	SAME AS NL VERSION
Construction	OPEN FRAME
RoHS Compliant	YES-RoHS-5 WIth Lead in Solder Exemption

The RJ11 interface is very similar to the RJ interface, but only has 4 pins (8 for RJ). In the computer system, RJ11 is primarily used to connect modem modems. RJ11 generally refers to a 6-position (6-pin) modular jack or plug. This kind of connector has no international specification and is mentioned in the general induction wiring specification. Moreover, this title is often used for 4-pin version of modular connectors, which then causes confusion.