Aiphone TB-20GA INSTALLATION INSTRUCTIONS
TB-20GA
20 Call Add-on Selector Modified for an Extra Add-on Selector
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.
TB-20GA
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)
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
Wiri n g: 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”
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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TB-20GA
20 Call Add-on Selector Modified for an Extra Add-on Selector
SPECIAL ORDER PRODUCTS:
Master Stations
TB-10M/D
TB-20M/D
Sub Stations
IE-JA-BR IE-JA with brass faceplate
IE-JA-AB
STANDARD PRODUCTS:
Master Stations
TB-10M 10-call Master station
TB-20M 20-call Master station
Add-on Selectors
TB-20G 20-call Add-on selector
TB-40G 40-call Add-on selector
10-call Master w/Sel. door release
20-call Master w/Sel. door release
IE-JA with antique brass faceplate
STANDARD PRODUCTS (Continued):
Adaptors
NOTE: Door stations call to one master only.
TB-AD10 Audio door station adaptor
(Up to 10 audio only doors)
TB-ADM10 Video door station adaptor
(Up to 10 audio or audio/video doors)
Video Door Stations
MK-DBC Semi-flush mount, black
MK-DAC Surface mount, prism lens
Plus others (See standard catalog)
Audio Only Door Stations
IF-DA Surface mount, brown plastic
IE-JA Flush mount, stainless steel
Plus others (See standard catalog)
Accessories
RY-PA Door Release Relay
(One per door with TB-nM/D)
SYSTEM LAYOUT EXAMPLE:
TB-SE
2 2 2 2 2 2
TB-SE
2
TB-SETB-SETB-SETB-SE
TB-SE
TB-SE
2
TB-20M w/ TB-20GA & TB-40G
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TB-20GA (2)
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