Optical Systems Design OSD2254P Series, Руководство оператора

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OPTICAL SYSTEMS DESIGN
DOC ID: 10115206
OSD2254P OPERATOR MANUAL
PAGE 12
2.2.5
OSD2254P ALARM CONNECTION
The OSD2254P has two monitoring alarm outputs: 1) Ring to Bus Alarm and 2) Temperature Alarm.
The alarm connections and conditions for alarm outputs are as set out in Table 3. There are four pins on
the 3.5mm terminal block used alarm output. Maximum ratings the OSD2254P relay can drive is
100mA @ 46V
(max)
. Note: Alarm output has no polarity.
TABLE 3: ALARM CONNECTIONS
Alarm
Output
Alarm1 Ring /Bus Status Alarm CH2 Temperature
Open Ring
Less than 90 ° C
Closed Bus*
Higher than 90 ° C
*Note: Bus alarm is only triggered after a ring connection is established.
FIGURE 5: ALARM OUTPUTS
FIGURE 6: CONTACT CLOSURE OUTPUT
Alm1
Alm2
OSD2254P