TB-20GA
DESCRIPTION:
The TB-20GA add-on selector is designed to
work with the TB-M Internal Telephone-type
system to allow expansion up to 80 stations, used
with the standard TB-20M master and TB-40G
add-on selector. All standard TB-M system
remote stations can be used with the expanded
system.
Aiphone Communication Systems • 1700 130th Ave. N.E. • Bellevue, WA 98005
(425) 455-0510 • FAX: (425) 455-0071 • (800) 692-0200 • www.aiphone.com
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20 Call Add-on Selector Modified for an Extra Add-on Selector
SPECIFICATIONS:
Power source:
18V DC, 350mA or 16V AC, 750mA
Current consumption:
6W max. 3W in standby
Calling:
Master to TB-SE: Pick up handset and select station button
TB-SE to Master: Pick up handset
Door station to Master: Press call button
Communication:
Master to Sub: Simultaneous through handset
Master to door station: Simultaneous. Master uses handset, door station is hands free.
Talk channel:
Single talk channel
Wiring:
2 conductors homerun from TB-SE to TB-
nM (Use Aiphone wire #812202)
2 conductors homerun from door station to TB-AD10 (Use Aiphone wire #812202)
5 conductors from TB-
nM to TB-AD1 (Use Aiphone wire #812206)
14 conductors from TB-
nM to TB-AD10 (Use Aiphone wire #822215)
2 conductors homerun from video door to TB-ADM10 (Use Aiphone wire #841802)
14 conductors from TB-
nM to TB-ADM10 (Use Aiphone wire #822215), plus
6 conductors from TB-ADM10 to MYH-CU (Use Aiphone wire #841806)
Mounting:
Desk or wall mount
Dimensions (HxWxD):
TB-10M/D:
4-5/8” x 10” x 9”
TB-20G & TB-20GA:
3-13/16” x 6” x 9”
TB-20M/D
4-5/8” x 13” x 9”
TB-40G:
3-13/16” x 11-13/16” x 9”
FEATURES:
• Up to 80 remote stations per system
• Two master stations (with TB-SE subs)
• Functions like a standard TB add-on selector
• Easily connected between the TB-M master and
standard TB-G add-on selector
• Compatible with all IE & MK series door stations
(adaptor required)
TB-20GA
