Comtech EF Data CRS-311 - Manual (Page 40)

CRS-311 1:1 Redundancy Switch Revision 7
Introduction MN/CRS311.IOM
1–16
1.4 Summary of Specifications
1.4.1 CRS-311 Specifications
Feature Specification
Switch Type
• 1:1 Redundancy Switch system
• Bridging architecture
• C161 control processor
Compatible Modems
• SLM-5650
• SLM-5650A
• CDM-Qx
• CDM-QxL
Operating Modes
• Fully automatic or manual
• Force Traffic Modem to Redundant Modem
• Programmable holdoff-to-backup and holdoff-to-restore times (from 1 to 99 seconds)
Switching Conditions Switch to Redundant Modem following a Unit fault, Tx traffic fault, or Rx traffic fault
Switching Time 6 seconds max. (Delay interval set to minimum, 1 sec)
IF Switching CRS-311 with CRS-281 IF Module: 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 +50°C (122°F), Non-condensing
Environmental Operating temperature range 0 ° to 50 ° C (32 ° to 122 ° F)
Redundant Modem
Signal Source
The traffic paths (bridge mode) (both Rx IF and Tx data)
Front Panel
• Vacuum Fluorescent Display (VFD): 2 lines @ 24 characters/line
• 6-button Keypad: ENTER, CLEAR, (4X) navigation
• LED system status display showing:
o
Operational status indicators: Unit, Remote, Stored Event
o
Online status indicators: Traffic or Redundant Modem
Audible Alarm Programmable to activate following various changes of state
Common faults Dry relay contacts
AC Prime Power Two independent inputs: 90 to 264 VAC, 50/60 Hz, at 25 Watts
DC Power Two independent inputs: -48 VDC, at 25 Watts
Dimensional Envelope
19W x 11.2D x 3.75H inch (2RU)
(48.26W x 28.4D x 8.9H cm)
Weight ~ 10 lbs (~ 9.07kg)
CE Mark EMC and Safety