148 MPA2C3 Installation Guide
Maximum current consumption for
RS485 bus
current
RS485 Bus I/O Devices,
RS485 Downstream
500mA per bus
Supported doors
Supported number of doors DOOR1, DOOR2, DOOR3, DOOR4WIEGAND: 4 doors/ 1 IN reader per door
OSDP: 4 doors/ 2 readers per door*
* External power supply must be added to the reader(s) / RS485-OSDP when bus current consumption
exceeds maximum specification
Reader interfaces
Reader Support Reader 1/3-Wieg.A / OSDP1,
Reader 2/4-Wieg.A / OSDP2
4 IN WIEGAND readers per door
8 OSDP readers: 4 doors/ IN AND OUT
readers per door*
Output Voltage Range at RJ45 reader
interfaces
when 12V internally powered
Reader 1 - Wieg.A / OSDP1,
Reader 3 - Wieg.A / OSDP1
10VDC ~ 14VDC
Maximum current output at RJ45
reader interfaces
when 12V internally powered
500mA combined for both Wiegand readers
500mA for all OSDP readers*
Output Voltage Range at RJ45 reader
interfaces
when 12V internally powered
Reader 2 - Wieg.A / OSDP2,
Reader 4 - Wieg.A / OSDP2
10VDC ~ 14VDC
Maximum current output at RJ45
reader interfaces
when 12V internally powered
500mA combined for both Wiegand readers
500mA for all OSDP readers*
Voltage Range at RJ45 reader
interfaces
when external voltage is applied at
Door 1/3: V - Ext.V Readers @ push
in terminal block
Reader 1 - Wieg.A / OSDP1,
Reader 3 - Wieg.A / OSDP1
14VDC ~ 24 VDC +/-10%
Max output current at RJ45 reader
interfaces
when external voltage is applied at
Door 1/3: V - Ext.V Readers @ push
in terminal block
1000mA combined for both Wiegand readers
1000mA for all OSDP readers*
Voltage Range at RJ45 reader
interfaces
when external voltage is applied at
Door 2/4: V - Ext.V Readers @ push
in terminal block
Reader 2 - Wieg.A / OSDP2,
Reader 4 - Wieg.A / OSDP2
14VDC ~ 24 VDC +/-10%
Max output current at RJ45 reader
interfaces
when external voltage is applied at
Door 2/4: V - Ext.V Readers @ push
in terminal block
1000mA combined for both Wiegand readers
1000mA for all OSDP readers*
Outputs
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