24
2–16 RS-232
Figure 2.20 Location of Jumper JP22
Figure 2.21 Configuration of RS-232 Cable
Figure 2.19 RS-232 Wiring
TEC99014
2–17 Analog Retransmission
Note: If the TEC-9300 is configured for RS-232 communica-
tion, the EI (event input) is disconnected internally. The unit can
no longer perform event input function (EIFN).
When you connect an RS-232 module (CM94-2) to the con-
nectors on the CPU board (C930), jumper JP22 on the terminal
board (T930) must be modified as following: J1 must be shorted
and J2 must be cut and left open. The location of JP22 is shown
in the diagram below, left (Fig. 2.20).
If you use a conventional 9-pin RS-232 cable instead of
TEC99014, the cable must be modified according to the cir-
cuit diagram above.
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