100
O P E R A T I N G I N S T R U C T I O N S | safeRS3
8027489/2022-03-01 | SICK
Subject to change without notice
9 TECHNICAL REFERENCES
9.1.6
CAN bus cables recommended specifications
Section
2 x 0.50 mm2 (46 AWG) power supply
2 x 0.25 mm
2
(23 AWG) data line
Type
Two twisted pairs (power supply and data) and one drain wire (or shield)
Connectors
5-pole M12 (see
Connectors M12 CAN bus on page 103
)
Connectors shall be type 3 (raintight)
Impedance
120 Ω ±12 Ω (f = 1 MHz)
Shield
Shield with twisted wires in tin-plated copper. To be connected to ground
circuit on the power supply terminal block of the control.
Standards
Cables shall be listed in accordance with application as described in the
National Electrical Code, NFPA 70, and in the Canadian Electrical Code,
C22.1.
9.1.7
Tamper-proof screws specifications
Pin Hex button head security screw
d
1
M4
l
10 mm (0.39 in)
d
2
7.6 mm (0.30 in)
k
2.2 mm (0.09 in)
t
min 1.3 mm (0.05 in)
s
2.5 mm (0.10 in)
d
3
max 1.1 mm (0.04 in)
