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CHAPTER 3: Installation
3. Installation
Installation involves three steps: four-wire
connections, EIA-232 connection, and jumper
settings.
3.1 Four-Wire Connections
Figure 1 shows the location of the terminal block
on the circuit board. Refer to Figure 2 to make the
proper connections between two High Speed
SHM-B Async units.
NOTE: Tr (TX+) on one modem is wired to R (RX+) on
the other modem; Transmit - (TX-) is wired to Receive - (RX-).
1. Insert the wires into the terminal strip; tighten the
screw terminals.
2. After you have made all four connections, wrap the
nylon cable tie (included) around the wires. Pull the
tie tight around the wires to secure them to the
printed circuit board. Trim the excess nylon tie with
wire cutters or scissors.
