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E1 MJPEG Digital Codec
Digital Encoding with E1 MJPEG
Digital Encoding with E1 MJPEG
The E1 MJPEG Digital Codec provides the User with the ability to transmit video over a digital network E1 or T1 link.
The E1 MJPEG Digital Codec provides reliable, secure video transmission for safety critical operations. This product has been used in level crossing applications in the United Kingdom, and we are proud of its classification of approval by UK Network Rail.
Features & Benefits
Video transmission over one E1 (2.048Mbs-1) – Utilises existing standard network data ports offered by telecom companies and network providers
Simplex video path with configurable frame rate and resolution M-JPEG compression - Provides the user with flexibility in the application; high resolution to real time video
Encoder & decoder are standard Eurocard format available in a stand alone box, 1U or 3U, 19" chassis – The product has been designed to dramatically reduce racking space requirements and power consumption with flexibility of housing type
Technical Specification
| Video |
| Compression Standard |
M-JPEG |
| Video Standards |
PAL & NTSC, B/W and Colour |
| No of inputs |
5 @ 75 Ohms/high impedance |
| Resolution (user defined) |
360 x 288 (CIF) to 720 x 288
(1/2 CCIR 601) |
| Frame Rate (user defined) |
6,8,12,25 for PAL 6,7.5,10,15 for NTSC |
| Diagnostics |
LEDs/PC port |
| Data: One, two way data channel |
| Format |
RS485 two wire, RS232, RS422, TTL (link selectable) |
| Jitter |
10% @ 19.2kbs-1 |
| Rate |
DC to 9.6kbs-1 and 19.2kbs-1 |
| Contact Closure |
Dry contact two way circuits |
No of inputs
(both encoder and decoder) |
8 |
| Type |
8 grounding or 4 opto-isolated |
| Relay |
N/C or N/O link selectable |
| Audio |
| Coding standard |
G722 |
| Bandwidth |
7kHz |
| S/N ratio |
As G722 spec. |
| Input impedance |
600 Ohms balanced |
| Network |
| Network connection |
E1, T1 |
| Rate |
2.048Mbs-1 or 1.544Mbs,-1 |
| Coding |
E1 (HDB3) T1 (B8ZS) |
| Impedance |
E1, 75 Ohms or 120 Ohms, T1, 100 Ohms |
| Clock |
Internal or recovered |
| Environment and Power |
| 3U & 1U Rack |
90-264V AC and 48V DC |
| Card (encoder or decoder) |
5V, 2A Max Current |
| Operating temperature |
0 to +50°C |
| Storage |
-10 to +70°C |
| Damp heat |
5 - 95% Non Condensing |
| Vibration |
5g |
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