Westermo TD-34 - Manual (Page 11)

11 6610-2203
9-pos. D-sub
RS-232
Alarms
Leased
Line
Line
connection
RJ-11
Line
connection
422/485
Power
connection
LV/HV
9-pos. screw terminal
RS-232
5.2 Connections
TD-34 Tele Modem family consist of two products:TD-34 LV and TD-34 HV.
TD-34 LV has a 2-pos. power connector insensitive to polarity as shown by the symbol
≈
on
the front.
The PE wire “protective earth” is not connected internally in TD-34.
but may be
connected for backwards compatibility.