GROUP S.p.A.
MT SB 01 24
E N
4 5 6
7 8 9
0 #
1
2
3
4
5
6
7
8
1 2 3
4 5 6
7 8 9
0 #
ABC DEF
MNOJKLGHI
WXYZTUVPQRS
A (---) AUTO 14:40
MER 12/03/10
17
16
15
14
19
2
4
6
ON/OFFCANC
ESC OK MENU
5
7
8
9
10
A/V
3
18
12
11
13
20
1
Overall view
Description of terminal block:
24 ~24V AC power supply
0 ~0V AC power supply
LP1 LP2 Incoming data line from external unit
LM LM Data line to risers
CH CH Free contact for “CALL REP.” or “ENABLE
EXTERNAL MONITOR”
OUT OUT N.O. contact which closes, sending a
video call from the switchboard to an internal unit
C NO N.O. contact for “FOLLOW ME” function
TX RX GND Serial port rs232 for connection to the
PC in order to download the names in the directory
using Art. 1249/A, or for connection to the remote
switchboard in systems where several switchboards
are connected in series or in parallel.
1 Message indication display
2
Directory and menu scroll keys
3 Directory key
4 MENU key
5 ON/OFF Power on/off (press and hold for 2
seconds)
6 Day/night key
7 Call key
8
Lock-release key
9
Call transfer key
10
Call hold key
11
Key used to call the main switchboard from the
secondary switchboard
12 Key used to activate an additional relay
13 Alphanumeric keypad
14 A/V “MASTER” “SLAVE” control key for main or
secondary switchboards in series
15 CANC Key used to cancel a call or delete entered
data
16 OK Conrm key
17 ESC Exit menu key
18 Handset
19 Keys used to scroll through missed calls
20 Speed numbers