Comelit MT CT 01 - Manual (Page 17)

GROUP S.P.A.
MT CT 01 16
Relay controls
With the microtelephone lifted, it is possible to activate the following relay outputs:
Table 4: Description of the relays present on card 2909
Adjustment of external unit volume
The sound of the entry phone interface has been designed in full-duplex mode, according to which the person
speaking can also listen to their interlocutor. It has volumes preset by Comelit , and once a conversation with the
external unit is set up, it is in nay case possible to adjust them directly from the telephone by using buttons 1 – 7 – 3
– 9, according to the method shown in the figure below. 17 adjustment levels are possible, and each time the button
is pressed, the volume is changed by 1 level. It is necessary to digit number 2 to store the volume levels reached.
TERMINAL DESCRIPTION POWER COMTEL BCA NOTES
N1 – C1 “Door Opener” Relay Max # The output can be configured
Control 7 A as bistable or as monostable.
80Vdc – This output can be activated
50Vrms remotely remote on a call from
the telephone line.
N2 – C2 “Stair Lights” Relay Max * The output can be configured as:
control 1A - - Bistable or as monostable.
24Vdc – - Internal Lighting-up use or generic use.
120Vrms If configured as Internal Lighting-up,
the output cannot be activated
remotely with the Relay Remote
Check service.
N3 – C3 “Gate opener” Relay Max 5 The output can be configured as
1A - bistable or as monostable.
24Vdc – This output can be activated
120Vrms remotely remote on a call from the
telephone line.
#
9 8 7
4 5 6
1 2 3
To increase the
volume in the
External unit –
Extension branch
direction
To increase the volume
in the
Extension branch –
External unit direction
Storage of the
volumes reached.
To decrease the volume
in the
Extension branch –
External unit
To decrease the volume
in the External unit –
Extension branch
direction