Siemens SCALANCE W788-1 - Page 47

Technical specifications
7.2 Technical specifications of the SCALANCE W7x8-2)
SCALANCE W788-x / W748-1
Operating Instructions, 06/2016, A5E03678333-10
47
Technical specifications
Permitted cable lengths (Ethernet)
(Alternative combinations per length range)
0 ... 55 m
• Max. 55 m IE TP Torsion Cable with IE FC RJ45 Plug 180
• Max. 45 m IE TP Torsion Cable with IE FC RJ45 + 10 m TP Cord via
IE FC RJ45 Outlet
0 ... 85 m
• Max. 85 m IE FC TP Marine/Trailing/Flexible/FRNC/Festoon/Food Cable with
IE FC RJ45 Plug 180
• Max. 75 m IE FC TP Marine/Trailing/Flexible/FRNC/Festoon/Food Cable +
10 m TP Cord via IE FC RJ45 Outlet
0 ... 100 m
• Max. 100 m IE FC TP Standard Cable with IE FC RJ45 Plug 180
• Max. 90 m IE FC TP Standard Cable + 10 m TP Cord via IE FC RJ45 Outlet
Wireless interface
IWLAN interface
Quantity
2
Antenna connector
Quantity
6
Design
• RJ-45 variants
• M12 variants
• R-SMA female
• N Connect, female
Impedance
50 Ω nominal
Frequency range 2412 ... 2480 MHz
4920 ... 5875 MHz
Electrical data
Power supply Direct 24 VDC supply
• Supply voltage from terminal
block/socket
• Permitted range
– Non EEC variants
– EEC variants
• Design
– RJ-45 variants
– M12 variants
• Properties
• 24 VDC Safe Extra Low Voltage (SELV)
– 19.2 to 28.8 VDC
– 16.8... 31.2 VDC (UL approvals only
valid for 19.2 ... 28.8 VDC)
– Terminal block, 4 terminals
– M12 connectors
• Not electrically isolated
Supply voltage from PoE
• Supply voltage from terminal
block/socket
• Permitted range
• Design
• Properties
• 48 VDC
• 36 to 57 VDC
• Via RJ-45 jacks
• Electrically isolating
Corresponding to IEEE802.3at
Insulation resistance > 2 MOhms