2.3.5 *FireWire (IEEE1394A) Pin Header: *J148/*J149

Signal

Pin

Pin

Signal

Description

#

#

Description

TPA+

1

2

TPA-

GND

3

4

GND

TPB+

5

6

TPB-

+12V

7

8

+12V

GND

9

10

GND

Warning: Both 1394 header and 1394 cable connector are colored black in order to distinguish from USB header which is colored blue. Please be aware that incorrect installation may harm the device.

Note: J148 & J149 are only available on

S2877ANRF version

2.3.6 Buzzer/External Speaker Header: J14

PIN1

 

Pin #

Signal Description

 

 

1

Speaker+

 

 

2

NC

 

 

3

Buzzer-

 

 

4

Speaker-

 

Close Pin3 and Pin4 (Default)

Enable onboard buzzer

Open Pin3 and Pin4

Disable onboard buzzer or connect to chassis speaker

15

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Image 15
Tyan Computer S2877 5 *FireWire IEEE1394A Pin Header *J148/*J149, Buzzer/External Speaker Header J14, Open Pin3 and Pin4