FR-2RU-10-2
Rev.
8
8
4
Connections
4.1
Power connection
Figure 3 shows the power connections of the sub-rack as well as the RS-422
connections and the DIP-switches for address setting of the sub-rack.
Figure 3: Connector module for the power supply.
AC: Connect mains to the sub-rack with a mains cord with an IEC 320
connector.
DC: Connect the DB9 male connector from the external DC power supply to
the main unit. Tighten the screws to ensure a proper contact. The DC inputs
have the same function; the left input (DC1) is for the left power module
when seen from the rear and DC2 is for the right power module when seen
from the rear.
4.1.1
Pin-out DC1 and DC2 (DB9)
The maximum current drawn from each pin of the DB9 connector is 2,5A.
Pin #1
GND for DC
Pin #2
+5V
Output, Max. current: 6A
Pin #3
Relay
GPI Output, Normally Open
Pin #4
+15V
Output, Max. current: 1A
Pin #5
Positive part of 48VDC supply
Input
Pin #6
-5V
Output, Max. current: 1A
Pin #7
Relay
GPI Output, Normally Open
Pin #8
-15V
Output, Max. current: 1A
Pin #9
Negative part of 48VDC supply
Input
Pin 1, 2, 4, 6 and 8 are common to both DC1 and DC2. (I.e. they are
physically connected).
A green LED will light on the front when the power supply is in operation.
