2N Lift emergency phone 2N SingleTalk - Manual, 1514 v6.3.0 - Manual (Page 34)

Installation
– universal version
2.5
33
Switch Installation
Universal switch module (order No. 913648E) can be installed
(before ST mounting!) into position 1 or 2 without removing the ST
cover. Having inserted the module into the motherboard margin
slots, tighten the two screws (through the panel cutouts).
Caution
 Be sure to tighten both the screws!
Warnings
 In reality, the "Contact" is a semiconductor switch of the ON-state
resistance of about 0.5 Ω. Switching voltage values lower than 9V may
bring troubles – the switch function cannot be, e.g., tested using a
common ohmmeter because it is used for small voltage only.
 The maximum switched current is 1 A. The switch is protected with a
resettable fuse against higher current values
 The allowed voltage is from 9 to 24 V, both DC and AC. The switch is
equipped with overvoltage protection against voltage peaks.
 The switch "contact" is safely electrically isolated from the telephone line,
yet designed for weak-current applications only. It cannot be used for
mains voltage of 230 V or 120 V.
Lift blocking module Installation
Lift blocking module (order No. 913649E) can be installed
(before ST mounting!) into position 2 without removing the ST
cover. Having inserted the module into the motherboard
margin slots, tighten the two screws (holes in the panel).
Caution
 Be sure to tighten both the screws!
Module function
The contact is closed when the telephone line is OK.
Cautions
 The module responds to the telephone line disconnection with an up to 2
minutes’ delay.
 The maximum switched current is 1 A. The allowed voltage value is up to
24 V. It is a mechanical contact (relay)).
Warning
 The module "contact" is safely electrically isolated from the telephone line,
yet designed for weak-current applications only. It cannot be used for
mains voltage of 230V or 120V.