AP-S High Powered System (Back To Top)

• Introduced in 1970
• Discontinued in 1978
• Replace with the AP-M System
• Fully compatible with AP-M
• AP-S Instructions

DL Apartment Intercom (Back To Top)

• Introduced in 1972
• Discontinued in 1975
• Replace with the VC-M System
• No compatibility

DX Duplex System (Back To Top)

• Introduced in 1981
• Discontinued in 1986
• No replacement

EX Phone System (Back To Top)

• Introduced in 1979
• Discontinued in 1986
• No replacement

HM-7 Home System (Back To Top)

• Introduced in 1978
• Discontinued in 1988
• Replaced by the LAF-B System
• Limited compatibility (click here to request further details)
• HM-7 Instructions
• DD-1 Instructions

IBG Door Answering System (Back To Top)

• Introduced in 1983
• Discontinued in 1987
• Replace with the IE System
• No compatibility

IC Chime Tone System (Back To Top)

• Introduced in 1987
• Discontinued in 1991
• Replace with the IE System
• No compatibility
• IC Instructions

KAH Speaker Phone System (Back To Top)

• Introduced in 1975
• Discontinued in 1987
• No replacement

LAF Intercom System (Back To Top)

• Introduced in 1975
• Discontinued in 1989
• Replace with the LEF System
• Fully compatible with LEF
• LAF Instructions

LAF-B Intercom System (Back To Top)

• Introduced in 1975
• Discontinued in 1992
• Replace with the LEF-C System
• Fully compatible with LEF-C
• LAF-B Instructions

LAM Two Station System (Back To Top)

• Introduced in 1974
• Discontinued in 1992
• Replace with the LEM System
• Fully compatible
• LAM Instructions

LC-S Selective System (Back To Top)

• Introduced in 1967
• Discontinued in 1975
• Replace with the LEF System
• No compatibility

MA Video System (Back To Top)

• Introduced in 1983
• Discontinued in 1984
• Replace with the MY System
• No compatibility

MB Video System (Back To Top)

• Introduced in 1984
• Discontinued in 1986
• Replace with the MY System
• No compatibility

MC Video System (Back To Top)

• Introduced in 1986
• Discontinued in 1988
• Replace with the MY System
• No compatibility

MF Video System (Back To Top)

• Introduced in 1988
• Discontinued in 1990
• Replace with the MY System
• No compatibility

MC-3 Market-Com System (Back To Top)

• Introduced in 1978
• Discontinued in 1995
• Replace with the MC-60/4A System
• Compatible (click here to request further details)
• MC-3 Instructions

MJS-1AD Video System (Back To Top)

• Introduced in 1993
• Discontinued in 1997
• Replace with the MK System
• No compatibility
• MJS-1AD Instructions

MYS-1AD Video System (Back To Top)

• Introduced in 1989
• Discontinued in 1993
• Replace with the MK System
• No compatibility
• MYS-1AD Instructions

MY-U Video System (Back To Top)

• Introduced in 1990
• Discontinued in 1993
• Replace with the MY-CU System
• Compatible, but new system includes PanTilt feature.

N/NAP Lamp Memory System (Back To Top)

• Introduced in 1968
• Discontinued in 1984
• Replace with the NEM System
• Limited compatibility with modification (click here to request further details)

TA-F Handset System (Back To Top)

• Introduced in 1966
• Discontinued in 1978
• Replace with the TD-H System
• No compatibility

TA-H Handset System (Back To Top)

• Introduced in 1967
• Discontinued in 1978
• Replace with the TD-H System
• No compatibility

TB-F Handset System (Back To Top)

• Introduced in 1978
• Discontinued in 1987
• Replace with the TD-H System
• Limited compatibility with modification (click here to request further details)
• TB-F Instructions

TB-H Handset System (Back To Top)

• Introduced in 1978
• Discontinued in 1987
• Replace with the TD-H System
• Fully compatible with TD-H
• TB-H Instructions

TA-R Telephone-type System (Back To Top)

• Introduced in 1971
• Discontinued in 1974
• Replace with the TB-M System
• No compatibility

TA-T System (Back To Top)

• Introduced in 1975
• Discontinued in 1982
• Replace with the TC-M System
• No compatibility

TA-Y System (Back To Top)

• Introduced in 1970
• Discontinued in 1978
• Replace with the TD-H System
• No compatibility

TB-T System (Back To Top)

• Introduced in 1982
• Discontinued in 1996
• Replace with the TC-M System
• TB-SE handsets are compatible, but have different call tone
• New TC-M master can be used with old TB-RC handsets
• TB-T Instructions

TS-K System (Back To Top)

• Introduced in 1971
• Discontinued in 1986
• No replacement

VAM Apartment System (Back To Top)

• Introduced in 1976
• Discontinued in 1990
• Replace with the VC-M System
• VC-K Handsets are compatible with modification (click here to request further details)
• VAM Instructions

VB Multi-unit Video System (Coaxial) (Back To Top)

• Introduced in 1985
• Discontinued in 1992
• Replace with the VY System
• No compatibility
• VB Instructions

WBS Wireless Intercom (Back To Top)

• Introduced in 1984
• Discontinued in 1988
• No replacement

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