MN-CRS100.IOM 7–1
Chapter 7. SUMMARY OF
SPECIFICATIONS
Equipment Type
1:1 Redundancy Switch
Modems
Supported
CDM-500, CDM-550 and CDM-550T Digital Satellite Modems
Operating Modes
Fully automatic
Manual (via the front panel of the Online Modem, or via the Modem’s
remote control interface )
Architecture
Full bridging architecture, with configuration synchronization
Tx Clock and Data signals fed to both Online and Standby units
Rx IF signal fed to both Online and Standby units
Continuous fault comparison of Online and Standby units
The configuration of Online and Standby units synchronized via the
Auxiliary Serial link between the two Modems
Switch Conditions
Switchover initiated following:
Unit faults only, or:
Unit faults or Receive Traffic Faults, or:
Unit faults or Transmit Traffic Faults, or:
Unit faults or Receive or Transmit Traffic Faults
Fault detection
time
0.5 seconds maximum
Switchover time
Within 0.1 seconds of fault detection
Data Interface
Types
EIA-422/EIA530 DCE (also supports X.21 DCE and DTE)
V.35 DCE
Synchronous EIA-232
Asynchronous EIA-232 (maximum data rate: 56 kbaud, and when
used with CDM-550 or CDM-550T only)
Automatic selection performed by modem
Pinout
Per EIA-530 (25 pin ‘D’ type female)
IF Switching
/Splitting
Tx IF: Switched by RF relay (0.3 dB max loss)
Rx IF: Passive power splitting (3.5 dB max loss)
IF Impedance
Both 50 and 75
Ω
supported
IF Connectors
BNC female
Содержание CRS-100
Страница 2: ......
Страница 4: ...Filename T_ERRATA 2 COMTECH PART NO PL WR9320 1 Figure 2 1 Cabling Details...
Страница 13: ...CRS 100 1 1 Redundancy Switch Revision 2 Preface MN CRS100 IOM viii...
Страница 19: ...CRS 100 1 1 Redundancy Switch Revision 2 Introduction MN CRS100 IOM 2 3 Figure 2 1 Cabling Details...
Страница 26: ...CRS 100 1 1 Redundancy Switch 3 4 MN CRS100 IOM This page has been intentionally left blank...
Страница 38: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...