Echelon Network Termination - Emerson E2 Einstein Manual

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6.2.1. Echelon Network Termina-

tion

Echelon networks require the devices on each

end of the daisy chain to be terminated with a 105-

ohm resistor across the signal-carrying leads. Most

CPC-manufactured Echelon devices have on-board

termination jumpers that, when set to the "termi-

nated" position, provide the required termination

resistance (refer to the device's own installation doc-

umentation). If the device does not have termination

jumpers, CPC offers an Echelon termination block

(P/N 535-2715) that may be wired in series right

before the end device (see Figure 6-7) or at the end

of an Echelon network run (necessary for TD3 instal-

lations) (Figure 6-8). The termination block provides

the necessary 105-ohm resistance for network termi-

nation.

Figure 6-7 - Echelon Termination Block (P/N 535-2715)

Figure 6-8 - Termination Block Usage With TD3s

Echelon Networking

Network Structure, Biasing, and Termination Resistance • 9

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