User manual

Technical Specifications
Specifications
3-2 July 2004 Wide Bank 28 DS3 - Release 2.4
Specifications
 System Parameters ... 3-2
 DS3 (44.736 Mbps) Interface ... 3-3
 DS1 (1.544 Mbps) Interface ... 3-4
 E1 (2.048 Mbps) Interface ... 3-4
 Cable Compensation ... 3-5
 Management ... 3-5
 Alarms ... 3-5
 DS3 Transmit Clock Source ... 3-5
 Power ... 3-6
 Environmental ... 3-6
 Physical Dimensions ... 3-6
System Parameters
The Wide Bank 28 DS3 has the following system parameters:
 Channel Capacity: Up to 28 DS1 signals or up to 21 E1 signals
 Multiplexed data rate = 44.736 Mbps ±20 ppm, full duplex
 Timing: Line Recovered, internally sourced, or externally supplied by BNC
 Reframe time maximum average:
- Less than 1.5 ms for DS3 level
- Less than 7 ms for DS2 level
 Redundancy: Controller 1:1, Power 1:1 with second Controller card, low-speed circuits 1:7
for electronics
 Path protection: 1+1 unidirectional linear APS architecture (requires second High-Speed DS3
electrical connection)
 High-Speed inputs: Two primary (BNC TX/RX); Two secondary BNC TX/RX
 External Clock cable:
75 ohm coaxial cable with tinned copper shield. Use type 735A or 1735A or equivalent for
cables up to 250 feet, and type 734A or 1734A or equivalent for cables longer than 450 feet