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22
PIN7
PIN8
PIN9
Note:
1. Pin 2 and pin 5 are open collector outputs which must be pulled up to a common
referenced supply, switch rating: +40V, 0.15A non-inductive.
2. Pin 4 and pin 7 should only be connected to ground.
2.8 Data-Line Surge Suppression
The data-line surge suppression on the rear panel provides an easy way to protect a
network (RJ45) or modem (RJ11) connection from hazardous spikes. Connect your
10/Base-T network cable or a single line telephone cable to the "Line" socket. To
complete the connection, connect another network cable or telephone line cable from the
"System" socket to your computer. The network cable and telephone line are optional
accessories, which may be purchased from your local dealer.
280ES / 420ES / 650ES / 1000ES / 1400ES
Common for pin 6 and pin 9.
Not connected
RS232 transmitter pin (TXD).
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Troubleshooting
