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Standard Inputs and Outputs

The following specifications describe the standard (as opposed to optional) inputs and outputs on the standard configuration of the XLi.

Serial I/O Port

The standard serial data port is a bi-directional EIA standard RS-232C interface. The serial data port is configured via the Keypad / Display and Standard network port.

Interface:

RS-232 or RS-422

Data Rates:

1200, 2400, 4800, 9600 and 19200 bps

Data Bits:

7 or 8

 

Parity:

even, odd, or none

Stop Bits:

1 or 2

 

Connector:

Male 9-pin D subminiature

Pin Assignment:

1------

N/C

 

2------

Rx (RS-232)

 

3------

Tx (RS-232)

 

4------

N/C

 

5------

GND

 

6------

Rx- (RS-422)

 

7------

Rx+ (RS-422)

 

8------

Tx- (RS-422)

 

9------

Tx+ (RS-422)

Factory settings:

9600, 8, N, 1

Note: Parity - NONE is only available/valid when Data Bits is set to 8.

See “F4 – Serial Port Configuration” on page 42.

NET – Network Port

The Ethernet port interface has a standard RJ-45 connector that provides IEEE 802.3 frame 10/100 Base-T Ethernet. See “F100 – Network Port Configuration & XLi Firmware” on page 80.

XLi IEEE 1588 Clock

11

997-01510-03, Rev. C, 12/12/2006

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Symmetricom XLi IEEE 1588 manual Standard Inputs and Outputs, Serial I/O Port, NET Network Port