Etherbus Hardware Manual
Page 12 of 23
Last Revised: 17-Sep-13
Red Lion
Controls
331 Ushers Road
Ballston Lake, NY 12019
USA
+1-518-877-5173
Single Injector
Power
The Etherbus Single Injector has a built-in DC to DC converter allowing it to accept power in
the range of 18 to 30 VDC (24 VDC nominal) and source 48 VDC power to one PoE device.
Make sure your 24 VDC supply is rated for at least 20W. Make your power connections as
shown in the diagram below.
There are two models of this injector:
The standard -1A model when sourcing PoE power will put out 48 VDC over the unused pair
of lines in the RJ45 connection:
o
V+ on lines 4 and 5
o
V- on lines 7 and 8
o
TX on lines 3 and 6
o
RX on lines 1 and 2
The -1B model (special order) when sourcing PoE power will put out 48 VDC over the signal
pair of lines in the RJ45 connection:
o
V+ on RX lines 1 and 2
o
V- on TX lines 3 and 6
o
Lines 4, 5, 7 and 8 are unused
P2 P1
One DC Supply
(18 - 30 VDC)
+ -
Chassis
GND
(panel)
-
+
Two DC Supplies
(18 - 30 VDC)
EB-PSE-24V
Single DC Power
EB-PSE-24V
Dual DC Power
+ -
Chassis
GND
(panel)
+
+
+
+
P1
P2
