Loopback Adapters

Stay Online CSU/DSU 56k Loopback Plug for Testing, RJ-45 Female with Pins 1-7 and 2-8
CSU/DSU Loopback Plug for testing, RJ-45 male with Pins 1-7 and 2-8 used to reroute transmit and receive Cisco CSU 56k signals back down the RJ-45 CSU/DSU connector that is plugged into the Loopback Jack.
Stay Online DDS Loopback Plug for Testing, RJ-45 Female with Pins 1-8 and 2-7
DDS Loopback Plug for testing, RJ-45 male with Pins 1-8 and 2-7 used to reroute transmit and receive DDS signals back down the RJ-45 DDS patch cable that is plugged into the Loopback Jack.
Stay Online Ethernet Loopback Plug for Testing, RJ-45 Female with Pins 1-3 and 2-6
Ethernet Loopback Plug for testing, RJ-45 male with Pins 1-3 and 2-6 used to reroute transmit and receive ethernet signals back down the RJ-45 network patch cable that is plugged into the NIC or switch.
Stay Online LC Fiber Optic Loopback Plug for Testing, LC Male Duplex Connector
LC Loopback Jack for testing, LC Male used to reroute transmit and receive fiber optic signals back into the LC connector of a piece of network equipment.
Stay Online SC Fiber Optic Loopback Plug for Testing, SC Male Duplex Connector
SC Loopback Jack for testing, SC Male used to reroute transmit and receive fiber optic signals back into the SC connector of a piece of network equipment.
Stay Online T1 Loopback Plug for Testing, RJ-45 Male with Pins 1-5 and 2-4
T1 Loopback plug for testing, RJ-45 Male with Pins 1-5 and 2-4 used to reroute transmit and receive T1 signals back down the RJ-45 T1 connector on the communications equipment.
Stay Online Telco Loopback Plug for Testing, RJ-45 Female with Pins 1-2 and 7-8
Telco Loopback Plug for testing, RJ-45 male with Pins 1-2 and 7-8 used to reroute transmit and receive Telco signals back down the RJ-45 Telco patch cable that is plugged into the Loopback Jack.