Patton electronic manual Connecting power, Grounding the Model SN4400-AC and DC units

SmartNode 4400 Series Getting Started Guide 3 • Hardware installation

Connecting the EIA-561 RS-232 configuration port (DCE configured)

Install the supplied RJ-45-to-RJ-45 cable with the DB9-RJ45 adapter between the SN4400 IpChannel Bank RS-232 console port (figure 10) and an open serial port on your computer. If you need to assemble your own cable, refer to the pinout diagram in figure 10.

RJ-45 Jack		DB-9	Signal Name
		6	DSR
	1	1	CD	DSR & DTR are internally
	2	4	DTR	wired together
	3	5	SG
	4
		2	RD (driven)
	5
		3	TD (received)
	6
	7	8	CTS
	8	7	RTS

Figure 10. DB-9-to-RJ-45 cable diagram

Connecting power

In connecting to the power source, it is important to establish a good grounding connection first, then the power connection. This section explains:

•Making the ground connection for either AC or DC units (see section “Grounding the Model SN4400— AC and DC units”)

•Connecting to an AC power source (see “Installing the power cables—AC units” on page 31)

•Connecting to a DC power source (see “Installing the power cables—DC units” on page 32)

Grounding the Model SN4400—AC and DC units

Do the following:

1.Assemble a ground wire using #10 AWG wire with green-colored insulation and two ring terminals. Make the wire long enough to reach one of the following earth ground sources:

–The building ground rod (generally located at the site’s main service entrance)

–A sprinkler system pipe

–A cold-water pipe

–Building structural steel

Installing the IpChannel Bank 30