Model 920 Ethernet Data Multiplexer Manual
Focal Technologies Corporation
Page 6-3
A Moog Inc. Company
920-0603-00 Rev K
6.4 Electrical and Environmental Specifications
Table 14: Electrical Specification
Electrical Specification
Min
Typ
Max
Units
Power Voltage (In)
20
24
28
Volts
Power Current (In)
0.16
0.30*
Amps
Power Voltage (Out)
20
24
28
Volts
Power Current (Out)
0.06
0.1
Amps
*Inrush Current
Table 15: Environmental Specification
Environmental Specification
Min
Typ
Max
Units
Temperature Range (Operational)
-10
+70
Celsius
Temperature Range (Storage)
-45
+85
Celsius
Humidity
85% RH, non-condensing
Shock
30 g, 11 ms half sine, 3 axes
g
Vibration
5 g, 25-1000 Hz, 3 axes
g, Hz
6.5 Maintenance
The unit requires no routine maintenance or calibration for the specified performance. Maintenance of the units
is limited to cleaning the various components using the methods described below.
Dust or dirt on the cards can be blown off using compressed air. If severe contamination of the cards should
occur, they can be removed and cleaned using distilled water. Cards must be thoroughly dried before reapplying
power.
In order to maintain optical performance, ensure the fiber optic connectors are kept clean. Use a suitable
solvent, such as reagent grade isopropyl alcohol, and a lint free tissue paper, such as Kimwipes® EX-L, to
carefully wipe any dirt off the face and barrel of the ceramic ferrules prior to making a connection.
Always replace dust caps on the Model 920 EDM fiber optic bushings when removing connectors. If bushings
are left open, they should be cleared of dust with compressed air prior to reconnection. Fiber jumpers and
pigtails should be periodically inspected for damage, such as nicks in the jackets or excessive bends.
The 8-pin power and CANbus connector is rated for 30 connection cycles. Avoid excessive and/or unnecessary
mating cycles.
