2 U 19-inch housing for 20 modules
Redundant AC/DC power supply
Cascadable up to 10 racks for monitoring with one management module
All modules can be changed during operation
Alarm relay
Integrated 4-port Gigabit Ethernet switch (FRM-220A)

FRM-220-CH01 1-slot top-hat rail
For mounting on top hat rail
Industrial design
Power supply (internal): 12 – 60 VDC
Connection via screw/plug-in terminals
Without fan
Dimensions: 170x50x88 mm (D x W x H)

FRM-220-CH01M Desktop unit with integrated console port for local management
Power supply (internal): 100 – 240VAC, 24VDC, 48 VDC, 72VDC
Combination: AC, DC, AC+DC, AC+AC, DC+DC
Power supply (external): 100 – 240VAC / 12VDC 1 A
Without fan
Dimensions: External SV: 160 x 88 x 24 mm (D x W x H), Internal SV: 180 x 135 x 35 mm (D x W x H)

FRM-220-CH02M with integrated console port for local management, NMC with SNMP & Web
Backplane connection of modules
Power supply (internal): 100 – 240VAC, 24VDC, 48 VDC, 72VDC
Combination: AC, DC, AC+DC
Power supply (external): 100 – 240VAC / 12VDC 1 A
Dimensions: CH02: 139 x 88 x 44 mm (D x W x H), CH02M/NMC: 220 x 168 x 45 mm (D x W x H)

FRM-220-CH04/NMC 4-slot desktop unit
with SNMP & Web support via NMC module
Backplane connection of modules
Power supply (external): 100 – 240VAC / 12VDC 1 A
Fanless
Dimensions: 162 x 87 x 88 mm (D x W x H)