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RJ-45 and DB-9 Pinout
References
RJ-45 Socket
(female)
1
8
8
1
DB-9 Socket (female)
5
1
9
6
NOTE: Silver satin cable is not standard Ethernet UTP cable, in which the pairs are twisted around each other. The
twisting of the pairs may cause undesirable effects on the serial communication, therefore we recommend the
use of flat silver satin cable instead.
NOTE: Flat silver satin cable is unshielded. If installing this cable in a noisy electrical environment, run the cable
through conduit.
LonWorks (LON)
A single, two-pin, LonWorks FTT-10A Weidmuller connector is provided on the controller. This connection supports twisted pair,
unshielded, polarity-insensitive, peer-to-peer communications at 78 Kbps.
Refer to the LonWorks FTT-10A Free Topology Transceiver User's Guide (078-0156-01F) for technical guidelines associated with
free topology restrictions and the Junction Box and Wiring Guidelines for Twisted Pair LonWorks Networks (005-0023-01) for
more detailed information on wiring specifications. These documents are available on Echelon's web site (www.echelon.com).
POWER UP AND INITIAL CHECKOUT
Ensure power wiring to the transformer has been completed before proceeding (see Power Wiring the "Power Wiring" section on
page 7). The WEB-645-AX controller does not include an on/off switch. To apply power, insert the 6-position power plug into the
circuit board.
Refer to Fig. 2. on page 6 for the locations of the power connector and status LEDs on the controller.
Checking the Heartbeat LED
Verify the "STATUS" LED (on the NPM6E processor module) is lit green. This indicates that the system is OK and that power is
applied.
Once the WEB controller boots, the adjacent yellow "BEAT" (heartbeat) LED begins blinking, with a typical rate of about 1 Hz.
Blinking should begin within 30 seconds after power is applied.
If after applying power, the STATUS LED goes out, or if the BEAT LED comes on (steady) and stays lit longer than 2 minutes,
contact Systems Engineering for technical assistance. Also see "BEAT".
Table 3. RJ-45 to DB-9 adapter pinouts.
Type of Adapter
Null Modem
(for connecting to
another DTE device)
Part number 10148
Straight-through
(for connecting to a DCE
device)
WEB-645, CP-645 NETWORK CONTROLLER
RJ-45
Socket Pin
5
DCD
3
TXD
6
RXD
8
DSR
4
GND
1
DTR
7
CTS
2
RTS
—
not used on the JACE-4
5
DCD
6
RXD
3
TXD
1
DTR
4
GND
8
DSR
2
RTS
7
CTS
—
not used on the JACE-4
9
DB-9 Socket
Signal
Data carrier detect
1
Transmit data
2
Receive data
3
Data set ready
4
Ground
5
Data terminal ready
6
Clear to send
7
Request to send
8
9
Data carrier detect
1
Receive data
2
Transmit data
3
Data terminal ready
4
Ground
5
Data set ready
6
Request to send
7
Clear to send
8
9
Pin
62-0432—01
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