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CRS-300 1:10 Redundancy Switch Revision 16
Introduction MN/CRS300.IOM
1–16
1.6 Summary of Specifications
1.6.1 CRS-300 Specifications
Characteristic Requirement
Switch Type
1:N Redundancy Switch system ( N=10 max), Bridging architecture
C161 control processor
Compatible Modems
• CDM-570/570L
• CDM-600/600L
• CDM-625
• CDM-Qx/QxL
• CDM-700
• CDM-710
• CDM-710G
• SLM-5650/5650A
Operating Modes
• Fully automatic or manual
• Force traffic modem to redundant modem
• Remove selected traffic modem from control
• Programmable holdoff-to-backup and holdoff-to-restore (from 1 to 99 seconds)
Switching Conditions Switch to redundant modem following a Unit fault, Tx or Rx traffic faults
Switching Time 9 seconds max. (Delay interval set to minimum, 1 sec)
IF Switching
• CRS-300 without CRS-280/280L IF Switch: IF ON / OFF control through the
Switch controller.
• CRS-300 with CRS-280/280L: all modems outputs ON all the time.
Temperature
• 0 to +50°C (32 to 122°F) Operating
• 50 to 100°C (122 to 212°F) Storage
Humidity 95% at +40°C (104°F), Non-condensing
CE Mark EMC and Safety
Environmental
Operating temperature range: 0
°
to 40
°
C (32
°
to 104
°
F)
AC Prime Power Two independent inputs: 100 to 250 VAC, 50/60 Hz, at 25 watts VA max
DC Prime Power 48 (38 to 60) VDC 25 watts max
Redundant Modem
Signal Source
Any one of the 10 traffic paths (bridge mode) (both Rx IF and Tx data)
Front Panel
• Vacuum Fluorescent Display (VFD): 2 lines @ 24 characters/line.
• 6-button Keypad: ENT (Enter), CLR (Clear), (4X) navigation
• LED system status display showing, for all modems:
o Unit fault, Rx traffic fault
o Tx traffic alarm Online / Offline status
o Bridge status
Audible Alarm Programmable to activate following various changes of state
Common faults Dry relay contacts
Dimensional Envelope 19W x 11.75D x 6.75H inch (48.26W x 29.85D x 17.15H cm) (4RU)
Weight ~ 20 lbs (~ 9.07 kg)