... -H-5 V TX2-H-6 V TX2-H-9 V TX2-H-12 V TX2-H-24 V TX2-H-48 V Nominal voltage, V DC 1 ... 140 140 140 140 140 140 140 270 Max. allowable voltage, V DC 2.2 4.5 6.7 7.5 9 ... -L-H-6 V TX2-L-H-9 V TX2-L-H-12 V TX2-L-H-24 V Nominal voltage, V DC 1.5 3 ... 100 100 100 100 100 100 100 100 Max. allowable voltage, V DC 2.2 4.5 6.7 7.5 9 ... -L2-H-6 V TX2-L2-H-9 V TX2-L2-H-12 V TX2-L2-H-24 V Nominal voltage, V DC 1.5 3 ...