Intel SX220 manual Jumper Block Pin-out, Jumper Clock Pin-out

The 8 pins of the RJ45 connector can be configured to match either of two pin-out standards used by serial port concentrators. To accommodate either standard, the J6A2 jumper block located directly behind the rear RJ45 serial port must be jumpered appropriately according to which standard is desired.

NOTE: By default, as configured in the factory, the SCB2 baseboard will have the rear RJ45 serial port configured to support a DSR signal.

For serial concentrators that require a DCD signal, the J6A2 jumper block must be configured as follows: The DCD jumper in position 2 and 3 and the DSR jumper in position 2 and 3. Pin 1 on the jumper is denoted by an arrow directly next to the jumper block. See Figure 9 on page 129 for the jumper block pin-out of this configuration.

Figure 6: Jumper Block Pin-out

For serial concentrators that require a DSR signal, the J6A2 jumper block must be configured as follows: The DSR jumper in position 1 and 2 and the DCD jumper in position 1 and 2. An arrow directly next to the jumper block denotes pin 1 on the jumper. See Figure 7.

Figure 7: Jumper Clock Pin-out

For those server applications that require a DB9 type of serial connector, an 8-pin RJ45-to-DB9 adapter must be used. The following table defines the pin-out required for the adapter to provide RS232 support.

Table 3: Pin-out required for an RS-232 support

RJ45	Signal	Abbreviation	DB9
1	Request to Send	RTS	7
2	Data Terminal Ready	DTR	4
3	Transmitted Data	TD	3
4	Signal Ground	SGND	5
5	Ring Indicator	RI	9
6	Received Data	RD	2
7	DCD or DSR	DCD/DSR	1 OR 6
8	Clear To Send	CTS	8

20 Viglen SX220 User Guide