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

Signal

Pin Pin Signal

NC1

TPA +

GND

TPB +

+12V

GND

NC2

1

3

5

7

9

11

13

2

4

6

8

10

12

14

Key

TPA ?

GND

TPB ?

+12V

GND

Key

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

http://www.tyan.com

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