Advantech DLT-V83 SERIES, Руководство пользователя

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Serial interfaces
Page 86 of 122 DLT-V83 Series Manual V1.50 Advantech-DLoG
13. Serial interfaces
The DLT-V83 is equipped with two externally accessible serial interfaces COM1 and COM2.
Resources for the serial interfaces are pre-defined in the system architecture and automatically
managed by the BIOS.
13.1. COM1 as a voltage source (optional)
The COM1 interface can optionally supply to externally connected equipment with +5 V or +12 V
of power. The voltages are protected by internal fuses and may not exceed a continuous
consumed current of 1 A at +5 V resp. +12 V. Depending on the connected devices, the
maximum current consumption may be significantly lower.
13.2. COM2 as EIA-422/485 (optional)
A basic function (RX, TX) EIA-422/485 interface can be integrated optionally into the DLT-V83 as
serial interface.
Pin assignment 4xx:
Pin Signal Pin Signal
1 nc 6 nc
2 nc 7 nc
3 RX- 8 RX+
4 TX- 9 TX+
5 GND
13.3. Network adapter (10/100/1000)
The DLT-V83 is equipped with a 10/100/1000 Mbit network adapter with 10/100/1000 Mbit per
second. This adapter can be accessed via the bottom of the device and offers an RJ45
connection jack. The RJ45 connection port has two integrated status LEDs and are assigned as
follows:
Fig. 13.1: RJ45 network port
Left LED (green) Right LED (orange):
LED off: no connection or 10 MBit LED off: no activity
LED on: Connection with 100 or
1000 MBit
LED flashing: Activity
Problems with data transmission via LAN/Ethernet
If problems occur during data transmission over LAN/Ethernet (e.g. data is lost or not detected),
the cause of these problems may be a cable which is too long. Depending on the cable layout
and interference from the environment, it may be impossible to use the cable length of 100 m
given in the specification (IEEE 802.3 standard). The solution here is the use of a shorter cable.