DSX-40 Common Equipment
18 ◆ Components DSX Component Guide
DSX-40 Common Equipment
DSX-40 4x8x2 Key Telephone System with 2 Door Box Ports and Caller-ID
DSX-40 is a compact, wall-mountable, more economical member of the DSX family that offers many of the
features and options of the larger DSX-80/160 in a smaller, self-contained cabinet. In its off-the-shelf basic
configuration, DSX-40 supports 4 CO (outside) lines with Caller ID, 8 DSX digital keyset extensions, and 2
analog (single line) extensions with power failure. Additionally, the basic DSX-40 provides:
• CompactFlash card interface (for IntraMail, software loading, and database backup)
• Conference circuits, DTMF receivers and DTMF generators
• NAND Flash for storing the system database
• Battery for short term (14 day) backup of the internal Real Time Clock and station parameters
• Two audio inputs for Background Music and Music on Hold (1/8” mono minijacks)
• One audio output for External Paging (1/8” mono minijack)
• Ethernet and USB ports for local and remote PC Programming
• RS-232 serial port for Station Message Detail Recording
• 2 DSX Analog Door Box ports with associated relays
• Built-in V.32BIS 14.4K BPS modem for remote maintenance
Tips to remember:
1. The CPU also has a reset switch that provides the following three functions:
• System reset (when momentarily pressed).
• System initialization (when held down as power is turned on).
• Software update (when held down for a few seconds while a software update CompactFlash card is
installed).
2. DSX-40 provides FSK Message Waiting. It does not provide high voltage Message Waiting.
Even with all the value built into the basic off-the-shelf DSX-40, the system is easily expandable by adding
station and line PCBs. See DSX-40 PCBs (page 19) for more.
At a Glance
P/N 1090001
Digital extension ports:
Built-in: 8
Fully expanded: 24
Analog line ports:
Built-in: 4
Total: 8
Analog extension ports:
Built-in: 2
Fully expanded: 18
Expansion slots:
Station expansion slots: 2
Line expansion slots:1
Built-in door box ports: 2
Built-in door box control relays: 2
Audio outputs: 1
Audio inputs: 2
Total Ports: 40 CompactFlash interface: Yes
Ethernet port: Yes (auto sensing) USB connector: Yes
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