Telephone Ringer Relay Switch Telephone Ringer Relay Switch Quasar Electronics Connects to landline phone. Detects incoming calls. Relay activates each time bell rings. Use to activate an external buzzer, bell, horn, light, etc. in synchronisation with incoming ringing signal... Electronics > Circuit Components > Printed Circuit Boards > Development Boards 8122KT 8122KT 19.14 Quasar Electronics Limited

Telephone Ringer Relay Switch

8122KT, AS8122-TB, AS8122-RJ11 - Telephone Ringer Relay Switch
Pre-Assembled and Kit versions available
  • Noisy environment?
  • Unable to hear your phone ringing?
  • Missing important calls?

The Telephone Ringer Relay Switch is an easy to install answer. Once connected to your phone line, the onboard relay can be used to activate an external siren, buzzer, bell, light, etc. which will turn on and off in synchronisation with the incoming ringing signal.

The relay is rated to switch loads of up to 48Vac or 28Vdc @ 3A maximum current and is completely isolated from the telephone line.

The board does not affect normal telephone operation and can be left permanently connected to the line. And it is powered from the phone line so no external power supply required. Suitable for use on PSTN (Public Switched Telephone Network) land lines.

Available as a self-assembly kit (8122KT) or pre-assembled unboxed module (AS8122-TB and AS8122-RJ11). The board has holes to take an optional RJ11 telephone socket (supplied with Order Code AS8122-RJ11 only).

Specifications
CompatibilityPSTN (Public Switched Telephone Network) land lines
Power supplyTaken directly from phone line
REN Number< 1
Output Type1 x SPDT Relay (non-latching)
Output LoadUp to 48Vac or 28Vdc @ 3A maximum
Output ConnectionsNO, NC, C (Relay FAQ)
Board Dimensions~ 50 x 40 x 25 mm
EnclosureWCAH2855
Phone Line Connection8122KT: Screw terminal block (with holes for optional RJ11 socket)
AS8122-TB: Screw terminal block
AS8122-RJ11: RJ11 socket (suitable lead for UK 113.354UK)
Relay ConnectionsScrew terminal block
Product FormatsSELF-ASSEMBLY Electronic Kit (KT)or
PRE-ASSEMBLED Electronic Module (AS) Product Formats Info
DocumentationUser Manual
Your Total:

8122KT, AS8122-TB, AS8122-RJ11 - Telephone Ringer Relay Switch Selection

PRE-ASSEMBLED Telephone Ringer Relay Switch Module (Terminal Blocks)
Quasar AS8122-TB - PRE-ASSEMBLED Telephone Ringer Relay Switch Module (Terminal Blocks)
Buy 1-4: £15.79 Exc VAT, £18.95 Inc VAT Each
Buy 5-19: £13.42 Exc VAT, £16.10 Inc VAT Each
Buy 20+: £12.63 Exc VAT, £15.16 Inc VAT Each
In Stock (Our UK Warehouse)
PRE-ASSEMBLED Telephone Ringer Relay Switch Module (RJ-11 Socket)
Quasar AS8122-RJ11 - PRE-ASSEMBLED Telephone Ringer Relay Switch Module (RJ-11 Socket)
Buy 1-4: £16.63 Exc VAT, £19.96 Inc VAT Each
Buy 5-19: £14.13 Exc VAT, £16.96 Inc VAT Each
Buy 20+: £13.30 Exc VAT, £15.96 Inc VAT Each
In Stock (Our UK Warehouse)
SELF-ASSEMBLY Telephone Ringer Relay Switch KIT
Quasar 8122KT - SELF-ASSEMBLY Telephone Ringer Relay Switch KIT
Buy 1-4: £13.29 Exc VAT, £15.95 Inc VAT Each
Buy 5-19: £11.30 Exc VAT, £13.56 Inc VAT Each
Buy 20+: £10.63 Exc VAT, £12.76 Inc VAT Each
In Stock (Our UK Warehouse)

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