Proface PS4800 - 19 Panel PC" - Manual (Page 131)

PS-4600 Series User Manual
131
Cable Serial Interface
The table provides the technical data of the cable serial interface:
Serial Interface Connections
This interface is used to connect Industrial Personal Computer to remote equipment.
The connector is a D-sub 9 pin, plug connector.
By using a long PLC cable to connect to the Industrial Personal Computer, it is
possible that the cable can be at a different electrical potential than the panel, even
if both are connected to ground.
The Industrial Personal Computer serial port is not isolated. The SG (signal ground)
and the functional ground (FG) terminals are connected inside the panel.
Element Characteristics
Signal Lines Cable cross section RS232
Cable cross section RS422
Cable cross section RS485
Wire insulation
Conductor resistance
Stranding
Shield 4 x 0.16 mm² (26 AWG), tinned Cu. wire
4 x 0.25 mm² (24 AWG), tinned Cu. wire
4 x 0.25 mm² (24 AWG), tinned Cu. wire
PE
 82 Ohm/km
Wires stranded in pairs
Paired shield with aluminum foil
Grounding Line Cable cross section
Wire insulation
Conductor resistance 1 x 0.34 mm² (22 AWG/19), tinned Cu.
wire
PE
 59 Ohm/km
Outer Sheathing Material
Features
Cable shielding PUR mixture
Halogen free
From tinned cu. wires
DANGER
ELECTRIC SHOCK
 Make a direct connection between the ground connection screw and ground.
 Do not connect other devices to ground through the ground connection screw
of this device.
 Install all cables according to local codes and requirements. If local codes do
not require grounding, follow a reliable guide such as the US National Electrical
Code, Article 800.
Failure to follow these instructions will result in death or serious injury.