Dahua SG4028 빠른 시작 매뉴얼 - 페이지 13

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DB9 pin

3.2.3 SFP Port

Background Information

The signal is transmitted through laser by optical fiber cable. The laser conforms to the requirement

of level 1 laser products. To avoid injury of eyes, do not look at the 1000 Base-X optical port directly

when the device is powered on.

Before installing SFP module, wear antistatic gloves, and then wear antistatic wrist strap. Make sure

that the antistatic gloves and the antistatic wrist strap are in good contact.

Procedure

Step 1

Lift the handle of SFP module upward vertically, and then stuck it to the top hook.

Step 2

Hold the SFP module by both sides, and push it gently into the SFP slot till the SFP module

is firmly connected to the slot.

Both the top and bottom spring strip of the SFP module are firmly stuck with the SFP slot.

Normal GND of the device is the important guarantee for device lightning protection and

anti-interference. You should connect the GND cable before powering on the device, and power off

the device before disconnecting the GND cable.

Table 3-1 Pin description

RJ–45 pin

Figure 3-6 SFP module structure

Figure 3-7 SFP module installation

Signal

RXD

TXD

GND

Description

Receiving data

Sending data

GND