– 7 –
TB-AD10, 10-call door adaptor may be wired to any # terminal on TC-M or TC-G add-on selector,
connecting max. 10 IE/IF door stations. Features two-way calling and communication with door
station, including optional pretone. Set the switch to ON position, if pretone to door is required.
TC-20M single-master with up to 10 door stations
TC-20M
TB-SE
TB-AD10
IF-DA
TC-20M
Master station
Sub station
TB-SE
E
D1
10-call door adaptor
TB-AD10
1
2
E
D2
1
2
E
D3
1
2
E
D4
1
2
E
D5
1
2
E
D6
1
2
E
D7
1
2
D8
1
2
E
D9
1
2
D10
1
2
IF-DA
E
1
2
E
1
2
E
1
2
E
1
2
E
1
2
E
1
2
E
1
2
E
1
2
1
2
1
2
3
4
5
6
7
8
9
10
12V
+
−
T
R
S
S
To: power supply
Do not connect any
power source here.
★
IN
AC 15-16V
or DC18V
12V OUT
12V
+
−
T
R
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
10
Call extension
IER-2
(one per TC-M)
1
E
In place of TB-SE handset subs, TC-M master
may have max. 10 door stations, by using a
TB-AD10 adaptor.
OFF
ON
TB-AD10
Diameter
Distance
0.65mm
150m
0.8mm
230m
1.0mm
360m
Diameter
Distance
0.65mm
65m
0.8mm
100m
1.0mm
150m
AWG
Distance
22AWG
500'
20AWG
750'
18AWG
1,200'
AWG
Distance
22AWG
210'
20AWG
330'
18AWG
495'
TB-AD10 to audio IF-DA
TC-M to TB-AD10
Wiring distance: