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M355 Public Digital Display Clocks

A range of 4 or 6 digit internal digital display clocks operating from either serial time codes or NTP network time servers.

The range is offered with a wide variety of digit colours and sizes. A line frequency display variant is also available.

The M355 LED Time Display is ideal in any interior public display application where clear and precise time display information is needed.

A comprehensive range of digit colours, digit sizes and data interfaces are available to suit operation with a variety of system equipment configurations and master clocks, compatible with 50 industry standard serial time codes as well as NTP.

All displays clocks are provided with a TCXO based real time clock which maintains an accurate time display during periods of holdover should there be a loss of synchronised master clock time.  

The units have a built in web based configuration server allowing full access to the menu configurations and IP address, subnet & gateway settings, thereby facilitating full monitoring and remote setup capability allowing brightness, UTC and/or local time preferences to be controlled.

All units are built to ISO9100D aerospace quality standards and are designed and supplied as long life, highly durable display units, specifically for use in high integrity and high reliability applications.  

Typical applications include:

Rail, sea and airport terminals, public stadiums and venues, banks, factories, hospitals and public halls.

M355 Digital Network Display Clock

The M355 LED Time Display is ideal in any interior public display application where clear and precise time display information is needed.

Features

Options and ratings

• High-intensity LED digits

• Excellent readability

• TCXO based Real Time Holdover Clock

• Suitable for interior applications

• User configuration via web browser

• Fully CE & RoHS Compliant

• Section 12 Compliant - Rail Fire & Safety

• Simple to configure for specific applications with a large range of options (see table)

   Single/Double Side

Single or double sided

   No. of Digits

4 (HH:MM) or 6 (HH:MM:SS)

   Digit Size (mm)

60mm / 100mm / 150mm / 200mm

    Digit Type

Seven Segment

Digit Colours

Red or Yellow or Green

Input Signal

NTP or RS422 / RS485 / RS232 Serial Timecodes

Power

Power Over Ethernet (PoE) or Mains (90-264VAC 50/60Hz)

Front

Acrylic or Glass (Section 12 compliance for Rail fire & safety)

Application

Indoor public displays

Serial Interface

RS232 or RS422 or RS485  Link configured  - 9 Way D Socket

Network Interface

RJ45 100BaseT - NTPv3 [RFC1305]

Case Finish

 Black Anodised to MIL-A-8625 Type 2, Class 2

Environmental

 Operating 0°C to +50°C   0-95% R.H. Non Condensing

TCXO Holdover

1st year 1ppm : 600µs in 24 hrs

Sync Indication

Flashing display colons indicate holdover

Mounting

Ceiling or Wall - supplied with brackets

Size

Display Information

Digit Height (mm)

Width (mm)

Height (mm)

Depth (mm)

Weight (kg)

Max viewing Distance (m)

4 digit

[ HH:MM ]

60

325

81

82

1.6

25

[ HH:MM ]

100

468

136

82

2.2

50

[ HH:MM ]

150

625

190

82

3

75

[ HH:MM ]

200

820

250

82

4.2

100

6 digit

[ HH:MM:SS ]

60

362

81

82

1.8

25

[ HH:MM:SS ]

100

633

136

82

2.5

50

[ HH:MM:SS ]

150

930

190

82

3.7

75

[ HH:MM:SS ]

200

1220

250

82

5.5

100

M355 Series - Public Digital Display Clocks

display_clocks_ds1.pdfM355 Line Frequency Digital Display Unit

The M355-LF Line Frequency Display is a variant of the M355 range and providing a clear indication of AC line frequency in digital format is required. The display can be used in conjunction with any time and frequency equipment with the required output interface.

These displays are suitable for interior applications where clear presentation of AC line frequency is required, e.g. Power Grids and laboratory environments.

The line frequency display provides precise and convenient reference for visual monitoring of mains frequency output.  

The display can operate as a stand-alone unit, or it can be used as a remote display in conjunction with a Master Clock, which includes AC Measurement capability.

display_clocks_ds1.pdf