
JANUS - PNB-PLM – Hands-Free Elevator Phone with Phone Line Monitoring
The JANUS - PNB-PLM is a hands-free elevator emergency phone with integrated Phone Line Monitoring (PLM), designed to help meet ASME / B44 2009 and 2010 code requirements. This unit is manufactured by EMS (Emergency Monitoring Systems) and marketed under the Janus label. It mounts behind the car operating panel (COP) and includes a 2-foot external LED indicator. When used with a separate Line Monitor Alert (LMA) device, the PLM feature triggers a contact closure if the phone line is lost—ensuring code-driven elevator safety compliance.
Key Specifications
Feature | Details |
---|---|
Product Type | Hands-Free Elevator Emergency Phone with PLM |
Brand | JANUS |
Manufacturer | EMS (Emergency Monitoring Systems) |
Mounting Type | Behind the Car Operating Panel (COP) |
External Components | 2' LED and PLM relay output |
Compliance | ADA, FCC, CSA, ASME/B44 (when used with LMA) |
Phone Line Monitoring | Included; requires external LMA device |
Power Source | Telephone line powered (48VDC to 50VDC) |
Dialing Method | DTMF |
Voice Chip | Fully programmable with extended memory |
Dialer | Built-in four-number auto dialer |
Keypad | Onboard for setup/programming |
Relay Output | Optional |
LED Indicator | Single or dual LED options |
Warranty | 2 years |
Applications
This phone is ideal for:
- Elevator systems requiring ASME/B44 code compliance
- Installations requiring phone line monitoring (with LMA)
- Retrofit and modernization projects
- Analog (POTS or PBX) phone systems
Note: The PLM feature must be paired with a Line Monitor Alert (LMA) device for full compliance. The PNB-PLM cannot monitor phone lines independently.