224 Alternate Connectors Part 4 · Standards and Protocols Used in Entertainment Under certain special circumstances, such as if the product is too small to physically fit a 5-pin XLR, the new standard now allows alternative connectors (however, it still does not allow the use of any XLR other than 5-pin, so three pins are still out). RJ-45 (8P8C) connectors and related punchdown blocks are now allowed for permanent installs, where the connection is accessible only to qualified personnel (to keep from plugging into an Ethernet network, for example, which could cause damage). The RJ-45 (8P8C) pin out for standard "Category" cable is: Pin 1 2 3 4 5 6 7 8 Category Wire Color White/orange Orange White/green Green Blue White/blue White/brown Brown Function Data 1+ Data 1­ Data 2+ Data 2­ No connection No connection Data link common for data 1 Data link common for data 2 Use Primary data link Optional secondary data link Not used Not used Common reference Common reference D ATA T RANSMISSION