19” Rack Mounting 1u. Front Fully populated with 24 RJ45 modules These panels are designed for use with voice gateways.The rear of the panel is fitted with 1 x Female RJ21 connector.This feeds 24 RJ45 ports on the front of the panel.Each port provides connectivity on pins 4&5 of the RJ45 sockets.Use with DTT voice RJ21 cables below.