EKI-9500 Series User Manual
14
Electromagnetic Interference (EMI) affects the transmission performance of a device.
By properly grounding the device to earth ground through a drain wire, you can setup
the best possible noise immunity and emissions.
Figure 2.4 Grounding Connection, Chassis Left Side View
By connecting the ground terminal by drain wire to earth ground the switch and chas-
sis can be ground.
2.4.4
Wiring the Power Inputs
To wire the power inputs:
Make sure the power cable is not connected to the switch or the power converter
before proceeding.
Note!
Before applying power to the grounded switch, it is advisable to use a
volt meter to ensure there is no voltage difference between the power
supply’s negative output terminal and the grounding point on the switch.
Pin
DN
Signal
VBUS
NC
DP
GND
1
2
3
4
5
Pin
TX
Signal
RX
DSR
GND
DTR
1
2
3
4
5
Pin
P1-N
P1-P
P2-N
P2-P
Pair
1
2
3
4
5
NA
Pin Pair
1
2
3
4
5
6
7
8
DA-
DA+
DB-
DB+
DD-
DC-
DC+
DD+
2
1 5 3
4
Pin PWR
GND
NA
1
2
3
4
5
6
L1
/
V +
L1
/
V -
L2
/
V +
L2
/
V -
1
2
5
4
6
3
Console
ALM
PoE
DATA
PoE
DATA
1
2
8
7
6
5
4
3
1
2
3
4
5
6
7
8
9
10
11
12
DATA
PWR1
SYS
CFG
ALM
PWR2
EKI-9512P
1
2
3
6
3
5
4
Power
Caution!
Do not disconnect modules or cabling unless the power is first switched
off.
The device only supports the voltage outlined in the type plate. Do not
use any other power components except those specifically designated
for the switch device.
Warning!
Power down and disconnect the power cord before servicing or wiring
the switch.
