-
TU507-ETH, Ethernet terminal unit, 24 V DC, screw terminals
-
TU508-ETH, Ethernet terminal unit, 24 V DC, spring terminals
-
TU508-ETH-XC, Ethernet terminal unit, 24 V DC, spring terminals, XC version
1
I/O bus (10 pins, female) to connect the first terminal unit
2a
Plug (2x 25 pins) to connect the inserted Ethernet communication interface module
2b
Plug (3x 19 pins) to connect the inserted Ethernet communication interface module
3
With a screwdriver, inserted in this place, the terminal unit and the adjacent terminal unit can be shoved from each other
4
2 holes for wall mounting
5
2 RJ45 interfaces with indication LEDs for connection with the Ethernet network
6
30 terminals for signals and process supply voltages (UP and UP3)
7
DIN rail
The Ethernet communication interface modules plug into the Ethernet terminal unit. When properly seated, they are secured with two mechanical locks. All the connections are made through the Ethernet terminal unit, which allows removal and replacement of the Ethernet communication interface modules without disturbing the wiring at the Ethernet terminal unit.
The Ethernet terminal units TU507-ETH and TU508-ETH are specifically designed for use with AC500/S500 Ethernet communication interface modules (e. g. CI501-PNIO).
XC version
XC = eXtreme Conditions
Extreme conditions
Extreme conditions
Terminal units for use in extreme ambient conditions have no 
sign for XC version.
The figure 4 in the Part no. 1SAP4... (label) identifies the XC version.
Terminals
|
Screw terminals |
Spring terminals |
||||
|---|---|---|---|---|---|
|
Conductor |
 |
Screwdriver |
Conductor |
 |
Screwdriver (opens terminal) |
The terminals 1.8 and 2.8 as well as 1.9, 2.9 and 3.9 are electrically interconnected within the terminal unit and have always the same assignment, independent of the inserted module:
Terminals 1.8 and 2.8: Process supply voltage UP = +24 V DC
Terminal 3.8: Process supply voltage UP3 = +24 V DC
Terminals 1.9, 2.9 and 3.9: Process supply voltage ZP = 0 V
The assignment of the other terminals is dependent on the inserted communication interface module.
NOTICE
Risk of corrosion!
Unused connectors and slots may corrode if XC devices are used in salt-mist environments.
Protect unused connectors and slots with TA535 protective caps for XC devices⮫ “TA535 - Protective caps for XC devices”.