Westermo DDW-142-485 - Manual (Page 12)

12 6642-22511
Location of interface ports and LED’s
LED Indicators
(for details
see page 15)
RS-422/485
(for details see page 9 and 14)
I/O connection
(for details see
page 11 and 14)
SHDSL connection (for details see page 11 and 14)
Ethernet connection TX (2 ports)
(for more details see also page 10)
Position Direction* Description
No.1 In/Out Transmitted/Received data
No. 2 In/Out Transmitted/Received data
No. 3 In/Out Transmitted/Received data
No. 4 – Not Connected
No. 5 – Not Connected
No. 6 In/Out Transmitted/Received data
No. 7 – Not Connected
No. 8 – Not Connected
* Direction relative this unit.
USB
(for more details see also page 10)
Position Direction* Description
No.1 Out VBUS
No. 2 In/Out D–
No. 3 In/Out D+
No. 4 Out GND
Shield – Connected to protective earth
* Direction relative this unit.
Power connection
(for more details see also page 10)
1
2
3
4
4-position Product marking Direction Description
No. 1 +DC1 Input Supply voltage input DC1
No. 2 +DC2 Input Supply voltage input DC2
No. 3 -COM Input Common
No. 4 -COM Input Common
This unit supports redundant power connection. The positive inputs are +DC1 and +DC2, the negative input for
both supplies are –COM. Connect the primary voltage (e.g. +24 VDC) to the +DC1 pin and return to one of the
–COM pins on the power input.