Installation
SMS-7000 Modem Protection Switch
2–22
Rev. 3
2.6.1
SCU Rear Panel
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Figure 2-6. SCU Rear Panel
2.6.1.1
User Remote (J1)
This port is connected to a control device, such as a terminal or personal computer. The
control device then communicates with the switch and associated modems using the
protocol defined in Appendix A. The user remote interface can be an EIA-485 or EIA-
232, 110 to 19200 baud. The connector is a 9-pin female D with the pinouts as shown in
Table 2-4.
Table 2-4. User Remote EIA-485/EIA-232 Connector (J1)
EIA-485
EIA-232
Pin #
4-Wire
2-Wire
1
GND
GND
GND
2
RD
3
TD
4
+TX
+RX/TX
5
-TX
-RX/TX
GND
6
DSR
7
RTS
8
+RX
+RX/TX
CTS
9
-RX
-RX/TX
Содержание SMS-7000
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Страница 106: ...Theory of Operation SMS 7000 Modem Protection Switch 4 2 Rev 3 Figure 4 1 IF Switch Block Diagram...
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Страница 148: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...