Specifications

Chapter 2 Installation and Setup Installation and Operation Manual
2-4 Connecting the Interface Cables ASMi-31 Ver. 3.0
2.6 Connecting the Interface Cables
Figure 2-2 illustrates the AC-powered ASMi-31 unit rear panel.
DTE
GND
245
LINE
~ 100-240VAC/ 48/60VDC
Return Power
Figure 2-2. ASMi-31 Rear Panel (AC Version)
Connecting the Line
The ASMi-31 line interface terminates in a 3-clip terminal block connector and
RJ-45 connectors. The terminal block has two connecting terminals: for transmit
wire and for receive wire on the twisted pair. It is marked LINE for the two wires
and GND for an optional connection of the shield to chassis ground. The 2-wire
line connection is not sensitive to polarity. It is highly recommended to use good
quality twisted pair cable to prevent crosstalk.
 To connect line to the terminal block:
1. Insert the screwdriver into a square hole.
Figure 2-3. Connecting the Terminal Block – Step 1
2. Raise the inserted screwdriver, putting pressure on the ramp within the
square hole.
Figure 2-4. Connecting the Terminal Block – Step 2
3. Insert the stripped end of the wire and remove the screwdriver.