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Installation and Configuration
2–26 TM-XR9B-01XN
User Signals
User Lines Connector
Auxiliary User Lines connector, located on the Ethernet/RS-232 Interface
rear panel, provides several signals to increase your operating control of
the supply. These signals are dependent on the operator's design and uses.
The operation of the user lines connector signal requires that you provide
external Vcc and ground. Use a standard 8-position telephone jack and
data cable to connect to the user lines connector. To locate the connector,
refer to the Ethernet/RS-232 Interface subplate drawing in Figure 2-2 on
page 2–5. See Table 2-14 for pin descriptions. The user lines connector
outputs can sink a current of 5mA each. Figure 2-6 on page 2–27 shows
the portion of the option board schematic which contains the user line
connector. Use the schematic as a reference when making input or output
connections.
Table 2-14
User Signals Connector
1 External TTL shutdown input signal (See “TTL Shutdown
Polarity” on page 2–25)
2 Polarity signal, open collector (asserted by VSET -x)
3 Isolation signal, open collector (asserted by OUT OFF)
4 Fault signal, open collector (asserted when bit set in fault register)
5 External Vcc, 15V maximum (supplied by connecting and
operating an external source)
6 External ground and shutdown return (supplied by connecting and
operating an external source)
7 Open collector user signal (asserted by AUXA ON)
8 Open collector user signal (asserted by AUXB ON)
User Line
Note: On some models, the
connector is rotated 180°.
TM-XR9B-01XN.book Page 26 Monday, April 19, 2004 9:00 AM