J8177C HPE X121 1G SFP RJ45 T Transceiver

The J8177C is the HPE X121 1G SFP RJ45 T transceiver, a small form-factor pluggable (SFP) gigabit copper module that provides a full-duplex gigabit link up to 100 m on Category 5 or better cable. It has one RJ-45 1000BASE-T port (IEEE 802.3ab Type 1000BASE-T), full duplex only, and Category 5E or better 4-pair unshielded or shielded twisted pair cabling is recommended.

The module measures 0.54 in wide, 2.71 in deep and 0.55 in high (1.37 x 6.88 x 1.4 cm), weighs 0.06 lb (0.03 kg) and draws about 1 watt. The J8177C is capable of 100 Mb operation on the ProCurve Switch 8200zl, 5400zl and 6200yl Series with software version K.12.21 or later, using the auto-100 port setting, while the earlier J8177B does not support 100 Mb operation.

The J8177C is not supported on dual-personality ports. In the ProCurve Switch gl 20-Port 10/100/1000 Module (J4908A) it installs in either the upper or the lower mini-GBIC port and blocks access to the other one. Aruba 2920 and Aruba 2930M switches accept the J8177C, and on the Aruba 5400R zl2 series supported 1G SFP transceivers are revision B or later, with the J8177C as an example.

The fiber members of the X121 family are the J4858C X121 1G SFP LC SX transceiver and the J4859C X121 1G SFP LC LX transceiver, and the J9727A Aruba 2920 24G PoE switch is one of the switches that take it. Other gigabit modules are in HPE switches.

Related: HP ProCurve 2510 switch parts