Andrew ION-B Series, User Manual

Page: 118 / 181

118 ION-B User Manual
TPRF
485 Bus Termination Load Dip-switch 8
Not connected OFF
Connected ON
Table 4.2.4 : Settiing the $85 Bus termination
Load through Dip-Switch 8
Power Supplying Ports
The front side of the TPRF31 Fast MiniRack is provided with 4 power supplying ports, conveying
the -48Vdc power supply to up to 4 ION-B Remote Units
.
Please refer to Bulletin PA-101187-EN in order to check that the overall maximum power the
TPRF31 provides to your Remote Units is below the overal maximum power supported by the
unit.
Figure 4.2.7:
TPRF31 Power supplying ports on TPRF31 front side (a),
Connection scheme of the power supply ports (b)
0V -48V 0V -48V 0V -48V 0V -48V
1 2 3 4
-72 ˜ -36 Vdc ; 2A
Max
-72 ˜ -36 Vdc ; 2A
Max
-72 ˜ -36 Vdc ; 2A
Max
-72 ˜ -36 Vdc ; 2A
Max
REMOTE UNIT
SUPPL
Y
0V -48V 0V -48V 0V -48V 0V -48V
(a)
(b)
Auxiliary Inputs
The rear side of the TPRF31 Fast MiniRack is provided with two auxiliary input alarms, allowing
the monitoring of the alarm status (on/off) of any external device. The alarm status is able to
be associated either with the open-circuit or the closed-circuit status by properly setting the
TPRF31 page of the TSUN Supervision Interface.
Auxiliary input connectors are Phoenix Contact MC1,5-2-G-3.5 connectors