Federal Signal Models E-DSM (membrane keypad) and E-DSMG (membrane keypad with gooseneck mic), are NEMA 1 handset intercom stations that may be used on a desktop or surface / wall mount application to provide speaker phone or private handset duplex two-way voice communication with LCD visual status display.
The Models E-DSM and E-DSMG Handset Call Stations can call any other station in the system and are capable of full duplex communication using the handset. Since the Digital Central Exchange can process calls simultaneously, there is no dial tone or delay. After keying in the two digits, the call can be connected immediately. The keypad provides tactile and audible feedback for positive activation. The LCD display at each Master station shows the called and calling station ID. A station may be preset to any of four levels of privacy for receiving calls; Non-Private, Semi-Private, Full Privacy, and DND (Do Not Disturb). Volume for both the handset and speaker phone can be adjusted.
The compact console unit is equipped with a handset, panel speaker and electret microphone. A standard 16 button keypad and LCD display with 2 lines of 16 characters is provided. The unit is intended for indoor use.
24VDC nominal (line driven from ECHO control)
2 lines, 16 characters/line
Via Keypad – 30dB in ten steps
Model E-DST, Grey conductive rubber
Model E-DSM, Membrane keys
24dB at 160kb/s maximum
170 Ohm maximum
2 km (1.2 miles) maximum
One twisted pair, non-shielded
Plug-in screw terminal, non-polar
When it comes to safety, security and effective communications for the most hazardous environments, the most demanding applications, Federal Signal stands out as your best source for total industrial solutions. The Federal Signal product line is universally recognized as both the broadest and deepest in the industry. Audible and visual signaling. Outdoor warning. Intercoms. Public address. Telephony. Initiating systems. Fire alarms. Uninterruptible power supplies. And more. In terms of comprehensive product coverage, no one beats Federal Signal. They don’t even come close.