19” Rack Mounting. Front Fully populated with 24 RJ45 modules. RJ45 Pins active on 4 & 5. Male RJ21 Telco tail 90 degree, also available in 180 or 120 degree hood.Individual slide marking system RJ21 male Telco terminated directly on to the RJ45 Panel. Active on the voice pair of each socket (pins 4&5). Simply plug the RJ21 connector into your voice gateway to provide connectivity. Terminated RJ21 male telco can be manufactured to any cable length required. Can be used for Cisco Voice VG224 Gateway. All you need to do is fit the panel in the rack, simply plug the RJ21 connector's into your voice gateway and your connectivity is provided. The VG224 voice gateway will eventually be upgraded to the VG310 voice gateway by Cisco.