The series is a range of compact transceiver modules designed to be rugged and therefore ideal for industrial and military applications. They feature a wide operating temperature range, a metal housing that minimizes the effects of electromagnetic interference, two through-hole mounting posts for stability under shock and vibration conditions, and pins that are soldered directly to the printed circuit board (PCB) to ensure continuous connection. Endurance modules are available with conformal coatings to increase reliability in harsh environments. They are made to Telcordian and military standards.