8 Additional information
BU 0700 EN Subject to technical alterations 123
Pin assignment RJ 12
RS 232 / RS 485
Function
Pin assignment SUB-D 9
RS 232
1 A_485 -
2 B_485 -
3 GND_EX 5
4 TXD_232 3
5 RXT_232 2
6 +5V_EX -
NOTE: When used as RS485 (for USS Bus), the termination resistor of the last subscriber must be switched on
using the DIP switch next to the RJ12 socket.
8.7.1 SK 700E up to 22kW
This connection option can be optionally ordered for devices from
1.5 to 22kW. The type designation of the devices is then SK 700E-
xxx-340-A-RS2.
The socket is located under the device cover, left next to the
technology unit slot.
RJ12 "on board" BG 1-4 (option)
8.7.2 SK 700E from 30kW
This connection is available in the standard designs for devices
from 30 to 160kW.
The socket is located under the device cover, left next to the
technology unit slot.
RJ12 "on board" BG 5-8 (standard)
RJ12 “on board“ BG 1-4 (option)
RJ12 ”on board“ BG 5-8 (standard)
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