User's Guide
electrostatic discharge, and electrical fast transient/burst immunity compliant to the IEC 61000-4-2, and
IEC 61000-4-4-EFT standards, respectively.
For more information on the BreadCrumb ES1 sealed Ethernet connector, see Ethernet Connector.
2.4.1 Power Requirements
The BreadCrumb ES1 ETH0 port supports Passive Power over Ethernet (Passive PoE), and therefore acts
as a dual function Ethernet and DC power input port for the BreadCrumb ES1. An external inline passive
PoE injector is used to merge DC power for the BreadCrumb ES1 with data from a LAN port or a wired cli-
ent.
The average idle power consumption of a BreadCrumb ES1 is 2.8 W at 24 V. The maximum peak power
consumption of BreadCrumb ES1 is 15 W at 24 V. Up to 2.5 W of additional power will be needed if a pe-
ripheral is being powered by USB (500 mA at 5 V is available at the USB port).
To ensure proper operation of the BreadCrumb ES1, the inline injector must output a DC voltage be-
tween 9 VDC to 30 VDC. Rajant recommends a minimum power supply of 19 W @ 24 VDC. Using a higher
output voltage facilitates longer cable runs between the inline injector and the ETH0 port on the Bread-
Crumb ES1. For details on Rajant’s VHDC-Series power accessories, please refer to the VHDC-Series spec
sheet.
Table: BreadCrumb ES1 Power Requirements (Passive PoE)
Input Voltage Avg Idle Usage @ 24 V Max Peak Usage @ 24 V
9 - 30 VDC 2.8 W + USB usage 15 W + USB usage
Table: BreadCrumb ES1 Power Supply Options
Model
Rajant
Part
Number Type
Output
Voltage
(V)
Max. Out-
put Cur-
rent (A)
Ethernet Link
Speed (Mbps) Environmental
TP-
POE-
24G
25-
100168-
001
AC to
DC
24 0.8 10/100/1000 Non-sealed
TP-
POE-
HP-24G
25-
100168-
002
AC to
DC
24 1.5 10/100/1000 Non-sealed
VHDC-
24V-
50W
01-
000029-
01
DC to
DC
24 2.08 10/100
Sealed (IP67: dust-
tight, waterproof)
VHDC-
24V-
50W-
GbE
01-
000037-
002
DC to
DC
24 2.08 10/100/1000
Sealed (IP66: dust-
tight, water-re-
sistant)
VHDC-
24V-
50W-LC
01-
000033-
01
DC to
DC
24 2.08 10/100 Non-sealed
Warning
Warning
The BreadCrumb ES1 cannot be powered with a 48 V PoE power supply. Using a PoE of higher voltage
The BreadCrumb ES1 cannot be powered with a 48 V PoE power supply. Using a PoE of higher voltage
than the stated ES1 voltage range may damage the ES1 and void the warranty.
than the stated ES1 voltage range may damage the ES1 and void the warranty.