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The CRS-500 is Comtech’s next generation 1:N Modem Redundancy System. Intended for hub applications, it provides automatic or manual protection for up to 10 Traffic (or prime) modems with one redundant (or standby) modem.
The CRS-500 is Comtech’s next generation 1:N Modem Redundancy System. Intended for hub applications, it provides automatic or manual protection for up to 10 Traffic (or prime) modems with one redundant (or standby) modem.
The CRS-500 supports the CDM-625/625A, CDM-760 and CDM-750 modems for select interfaces. The CDM-625/625A is supported when using the 10/100 Packet Processor mode. The CDM-750/760 is supported when using the ASI, G.703, Gig-E native interface or Gig-E Packet Processor interface (packet processor and ASI only available on the CDM-760).
As shown in the figure, the CRS-500 is a flexible, modular-type architecture, composed of a Control Switch Unit (CSU), Data Switch Unit (DSU) and optional IF Switch Units (ISUs).
A key feature of the CRS-500 architecture is its ability to allow the redundant modem to ‘bridge’ a traffic modem. The CRS-500 controller automatically configures the redundant modem to match the bridged traffic modem’s configuration. The CRS-500 also provides a copy of the bridged traffic modem’s TX traffic data to the redundant modem. When using the IF Switch Units (ISUs), it additionally routes the bridged traffic modem’s RX IF.
Flexible 1:10 (max.) configuration |
Primary traffic paths are maintained, error-free, when power is removed |
Non-interruption of traffic data when Traffic Modem Interface (TMI) cards are removed |
Bridge mode (hot-standby) redundant modem to ensure quick availability for backup |
Programmable hold-off times to backup or restore |
Programmable preference Selectable Prime Traffic Modem |
Remote (Ethernet or serial) Monitor and Control to switch |
Multiple user interfaces (Web/HTTP, SNMP, MIB, Front panel) |
LED summary panel showing switch and modem status, bridge and online/offline |
Dual independent & hot-swappable/uninterrupted AC or DC power supplies |
Audible alarm programmable to activate, based on various changes in status |
Weight | 6 kg |
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Dimensions | 50 × 40 cm |
SKU | CRS-530 |
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