M355 Digital LED Time Display
(Interior application)
4 & 6 Digit LED Clocks
These displays provide a clear indication of time in a digital format and are suitable for any interior application where clearly presented time or date information is required. They can be used in conjunction with any time and frequency equipment with the required output interface.
Features
- Single-sided display
- Seven segment high-intensity LED digits
- Choice of 4 digit or 6 digit
- Available in Serial/Timecode or NTP versions (see below)
- Excellent readability through clear acrylic window
- Wall or desk mounting options available
- Range of colours and styles available
Serial/Timecode Display
A wide range of interfaces is provided in the product allowing it to be used in conjunction with a master timing system and in a variety of applications.
The display can be also operated in conjunction with an external Time Receiver. With this arrangement, the display only requires an AC power source to operate; the display will automatically acquire accurate time from the selected time source. External Time Receivers are available for most LF Time broadcast services and for reception of time from the Global Positioning System (GPS).
Alternatively, the display can be manually configured to run autonomously via switches set in the case.
Network Time Display
The M355 Network Time Display is available for use with computer networks operating Network Time Protocol (NTP). By connecting the display to the network, a clear indication of time or date in digital format is provided. Through use of NTP, the display automatically acquires accurate time at any location where a network connection is available.
Specifications
General
Display Technology: 7 Segment High Intensity LED.
Display Digit Colour: Red, Green or Yellow
Power: 115/230V AC ± 10% 48?62Hz.
Environmental (Operation & Storage)
Temperature: 0°C to +40°C.
Humidity: Up to 95% RH (non-condensing)
EMC: CE Compliant
Serial/Timecode Time Display
Display Size Digit Size A (mm) B (mm) C (mm) D (mm) E (mm) Weight (kg) Power (W)
Medium 100mm 430 80 136 300 200 3.8 30
Small 60mm 290 80 81 150 150 3.0 30
Operation
The display is provided with the following facilities for operating in a stand-
alone or Master/Slave Configuration.
- 3 button time setup facility for stand alone operation.
- RS232/RS422/20mA Current Loop interfaces for use with a Master
Clock.
- 24V Impulse input for use with Analogue Clock circuits.
- EBU Time Code input for use in broadcasting applications.
- Interface to external Time Receiver for highly accurate operation
without a Master Clock.
Network Time Display
Display Size Digit Size A (mm) B (mm) C (mm) D (mm) E (mm) Weight (kg) Power (W)
Medium 100mm 635 91 136 400 200 3.8 30
Small 60mm 366 91 81 200 150 3.0 30
Display Connections
The display is provided with a RJ45 socket for connection to a 10BaseT network. A 9 way D type socket is also available for RS232 connection for configuration and status purposes (38.4kbaud, no parity, 8 bit characters and 1 stop bit).
Interface Standards
This display is compatible with NTP version 3 as defined by specification RFC 1305.
Network Configuration
Configuration of the network parameters including IP address, Subnet Mask, and Gateway Address is performed by means of the menu driven user port. All such details are stored in non-volatile memory.
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