Specifications

FOMi-E1/T1 Installation & Operation Manual Chapter 2. Installation & Setup
Jumper Setting 2-5
Table 2-1 RJ-45 Pin Assignment
Pin No. Designation/ Function
1 TTIP
2 TRING
3 Frame Ground
4 RTIP
5 RRING
6 Frame Ground
7, 8 Not connected
Warning
The E1 and T1 ports should be connected to SELV (Safety Extra Low
Voltage) links only.
Dry Contact
Alarm
The supervisory port is a 9-pin, D-type connector which provides dry
contact for major and minor alarms.
For more information and pinout, see Chapter 4, Table 4-4.
Connecting the
Power
To connect the power to FOMi-E1/T1, refer to the appropriate section
below, depending on your version of the unit (DC or AC).
Warning
The unit has no power switch. Operation starts when power is applied
to the rear panel POWER connector. When applying power, first
connect the plug of the power cord to the FOMi-E1/T1 POWER
connector and then to the mains power source (outlet).
Grounding
Before switching on this instrument, connect the protective earth
terminals of this instrument to the protective conductor of the (mains)
power cord. Insert the mains plug only into a socket outlet with a
protective earth contact. Only use an extension cord (power cord) with
a protective conductor (grounding).
Replace fuses only with fuses of the same current and voltage rating as
indicated on the unit. Do not short-circuit fuse holders. Whenever it is
likely that the protection offered by fuses has been impaired, the
instrument must be made inoperative and secured against any
unintended operation.
For your protection, FOMi-E1/T1 must always be grounded. Any
interruption of the protective (grounding) conductor (inside or outside
the instrument) or disconnection of the protective earth terminal can
render this instrument dangerous. Intentional interruption is
prohibited.