Rajant Corporation
03-100137-011
BreadCrumb® JR2 v11 User Guide
Version 11.4.0
12
2.4 Power and Ethernet
BreadCrumb JR2 contains one 10/100 Ethernet port, which supports MDIX auto detection. Use the side
latches to open the Ethernet Port cover (see Figure 1), to reveal the Ethernet connector.
The Ethernet port also supports Passive Power over Ethernet (Passive PoE), and therefore acts as a dual
function Ethernet and DC power input port for the BreadCrumb JR2. An external inline injector is used
to merge DC power for the BreadCrumb JR2 with data from a LAN port or a wired client.
To ensure proper operation of the BreadCrumb JR2, the input voltage to the JR2 must be between 8 to
30 VDC. Maximum power consumption of the device is 11.5W at 24V. Using a higher output voltage
facilitates longer cable runs between the inline injector and the ETH0 port on the BreadCrumb JR2.
The BreadCrumb JR2 ships with Tycon Systems TP-POE-24, a 24V, 19W, 100MB Passive PoE injector.
Warning
In order to avoid sparking and possible damage to the unit, be sure to connect the
powered Ethernet cable to the BreadCrumb JR2 before applying power to the power
supply.
2.5 Status LEDs
The Status LEDs (see Figure 1) are capable of displaying warning and error codes, and link state. The
LED Mode can be configured in BC|Commander to be
On
,
Off
,
Alerts Only
, or
OFF (switchable)
.
When the LED Mode is
On
, the BreadCrumb LEDs will display the link state and, when the
BreadCrumb has warnings or errors, will alternate between displaying the link state and flashing the
error codes. When the LED Mode is
Off
, the BreadCrumb LEDs will not display the link state or any
warnings or errors. When the LED Mode is set to
Alerts Only
, the BreadCrumb LEDs will display
nothing or, when the BreadCrumb has warnings or errors, will alternate between displaying the link state
and flashing the error codes. The LEDs and their meanings are given in Table 2.
Warning
The BreadCrumb JR2 Status LEDs may exhibit a short blink at startup. The LED must
be physically masked (such as adding tape to the LED lens) to guarantee that no light is
emitted at any time.