To reduce sparks and arcing if an RJ plug is removed from an RJ jack while a PoE signal is present, the jack includes contact terminals for making electrical contact with blades of the plug. At least two primary contact terminals have first engagement portions positioned a first distance from the opening. At least one secondary and/or tertiary contact terminal has a second and/or third engagement portion, which is positioned less than the first distance from the opening. The engagement portions are the last portions of the contact terminals to make electrical contact with corresponding blades of the plug upon removal of the plug. At least one of the first engagement portions is formed of a first material different from a second material used to form at least one of the second or third engagement portions. One of the materials is formed to resist damage from sparks better than the other material. By this system, an RJ jack would not have all of the contact terminals formed to resist damage from sparks and arcing.