tams elektronik LC Series Manual page 5

LC modules
In addition, you possibly need for the following versions of the LC-
modules:

LC-module 16: For the connection of accessories with a current
consumption of more than 100 mA to output 1: a monostable relay
1xUm 12 V (e.g. item-no. 84-61010-01) and a protective diode
1N400x, x > 2.

LC-module 18: a loudspeaker (recommended impedance > 32 Ohm,
e.g. item no. 70-03121-01).

LC-module 24: For the connection of other LC-modules (except LC-9,
LC-10, LC-24): a monostable relay 1xUm 12 V (e.g. item-no. 84-
61010-01) and a protective diode 1N400x, x > 2.
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