User’s manual for Repeater MRx01B Power
M0079A1A.doc
Id.-No. 151775
Page 29
10-March-00
4 Optional equipment
The following modules can be integrated as an option.
4.1 VSWR module
VSWR signal is continually measured by a special VSWR module. An alarm can be given for
VSWR < 10 dB.
4.2 External alarms
With the following option it is possible to monitor 4 external alarms via the Repeater
software. Hence the status of the connected device, e.g. UPS, can be monitored.
The contacts of the alarms can be accessed at clamps on the main board (right-hand side of
the Repeater).
The electrical connection has to be
as follows:
External alarm 4 (high active)
External alarm 3 (high active)
External alarm 2 (low acitve)
External alarm 1 (low acitve)
Ground
figure 4-1 Clamps for external alarms
Configuration: 5 V / 0.5 mA max. for open collector applications.
All external alarms are normally high without connection. Due to the fact that the external
alarms 3 and 4 are high active, they have to be connected to ground to prevent an alarm
message.
