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DN-2400E User Guide - 08/05/11
4.2 Connector and Terminal Block
Figure 4.2.1
A conventional RJ-45 connector is provided on the DN-2400E/EP for the Ethernet connection, as shown
in Figure 4.2.1. A “straight through” Ethernet cable should be used between the DN-2400E/EP and its
host PC, etc. The RJ-45 connector incorporates two LEDs. The green LED indicates that an Ethernet link
is established, and the amber LED indicates Ethernet traffic activity. On the DN-2400EP, this connector
also supports IEEE 802.3af Mode B Power over Ethernet.
RJ-45 Ethernet Connector
Pin Name
I/O
Description
1
TX+ O
Ethernet positive differential output.
2
TX- O
Ethernet negative differential output.
3
RX+ I
Ethernet positive differential input.
4
DC+ I
Power over Ethernet DC+ input on the DN-2400EP. Not used on the DN-2400E.
5
DC+ I
Power over Ethernet DC+ input on the DN-2400EP. Not used on the DN-2400E.
6
RX- I
Ethernet negative differential input.
7
DC- I
Power over Ethernet DC- input on the DN-2400EP. Not used on the DN-2400E.
8
DC- I
Power over Ethernet DC- input on the DN-2400EP. Not used on the DN-2400E.
A six-pin terminal block is also provided on the DN-2400E/EP for serial port and DC power connections,
as detailed below. The pin numbers read left-to-right as shown by the silkscreen above the connector.
Grounding Pin 3 switches the DNT2400E/EP radio signals from the Ethernet port to Pins 1 and 2 on the
terminal block, allowing the DN-2400E/EP to be configured as discussed in Section 5 below. DC power is
input to this terminal block on Pins 5 (+) and 6 (-).
Serial Port/DC Power Terminal Block
Pin
Name
I/O
Description
1
DI I
This terminal receives serial configuration data transmitted from the host.
2
DO O
This terminal transmits response data to the host.
3
CONFIG I
Connecting this terminal to either ground terminal 4 or 5 routes DI and DO to the cor-
responding pins on the radio transceiver, allowing the transceiver to be configured.
4
SIG GND
-
DN-2400E signal ground.
5
+ (PWR)
I
Positive power supply input, 9 to 48 V.
6
- (PWR)
-
Power supply ground.