KYLAND Technology SICOM3000, Hardware Installation Manual

Page: 26 / 40

PWR1 PWR2
+/L -/N -/N +/L
FAULT
Console
GND
Connection
20
4.5 Grounding
Figure 20 Grounding
Table 7 Pin Definitions of DB9 Port (9-Pin Serial Port) and RJ45
Port (Console Port)
DB9 Port (9-Pin Serial Port) RJ45 Port (Console Port)
Pin Signal Pin Signal
2 RXD (Receive data) 2 TXD (Transmit data)
3 TXD (Transmit data) 3 RXD (Receive data)
5 GND (Grounding) 5 GND (Grounding)
Grounding protects the switch from lightning and interference. There-
fore, you must ground the switch properly. You need to ground the
switch before it is powered on and disconnect the grounding cable
after the switch is powered off.
The switch provides a grounding screw on the top panel for chassis
grounding. After crimping one end of the grounding cable to a cold
pressed terminal, secure the end to the grounding screw and
connect the other end to the earth firmly.
Note:
Cross-sectional area of the chassis grounding cable>2.5mm
2
;
grounding resistance<5 Ω .