Seagate ST380012ACE - U Series CE 80 GB Hard Drive Instruction Manual download pdf (Page 12)

2.3 ALARM In/Out

The pin assignment of the female DB-25 alarm I/O connector is listed as follows.

alarm I/O

12345678910111213

141516171819202122232425

Pin# Pin Assignment Pin# Pin Assignment

1 GROUND 14 RESERVED

2 DISK FULL (OUTPUT) 15 ALARM1 OUT (OUTPUT)

3 ALARM2 OUT (OUTPUT) 16 ALARM3 OUT (OUTPUT)

4 RECORD IN (INPUT) 17 ALARM RESET (INPUT)

5 ALARM1 IN (INPUT) 18 ALARM2 IN (INPUT)

6 ALARM3 IN (INPUT) 19 ALARM4IN (INPUT)

7 ALARM5 IN (INPUT) 20 ALARM6 IN (INPUT)

8 ALARM7 IN (INPUT) 21 ALARM8 IN (INPUT)

9 ALARM9 IN (INPUT) 22 ALARM10 IN (INPUT)

10 ALARM11 IN (INPUT) 23 ALARM12 IN (INPUT)

11 ALARM13 IN (INPUT) 24 ALARM14 IN (INPUT)

12 ALARM15 IN (INPUT) 25 ALARM16 IN (INPUT)

13 NO CONNECTION

NOTE: THIS FIGURE IS SEEN FROM THE REAR VIEW

 GROUND: Ground Contact.

 DISK FULL (OUTPUT): This is a disk full output trigger. Connect this to external devices

such as buzzers or lights. (

0V(Active)

)

 ALARM OUT (OUTPUT): This is an alarm output trigger. Connect this to external devices

such as buzzers or lights. (

0V(Active)

)

 RECORD IN (INPUT): This pin connects to a record trigger device for starting a record.

(

0V(Active)

)

 ALARM RESET (INPUT): This pin connects to an alarm-clear device for clearing an alarm.

(

0V(Active)

)

 ALARM IN (INPUT): This is an alarm input (for each channel) that can be programmed in

the menu system to Normally Open or Normally Closed. (

0V(Active)

)

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 77 78

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Seagate ST380012ACE - U Series CE 80 GB Hard Drive Instruction Manual Page 12