Allied Telesis AT-9448Ts/XP (Basic Layer 3) - Manual (Page 82)

Appendix A: Technical Specifications
82
Table 18 lists the definitions for the RPS 21-pin D-combo port and
connector pins.
Table 18. RPS 21-pin D-combo Port and Connector Pin Definitions
Pin Definition
1 Reserved
2 Fan 2 status
3 Fan 1 status
4 RPS status
5 Ground
6 Ground
7 RPS status
8 +12.0 VDC sense
9 Reserved
10 No connect
11 Ground
12 Ground
13 Ground
14 Ground
15 Ground
16 Ground
17 Ground
18 +12.0 VDC sense
19 Ground
20 No connect
A-1 +12.0 VDC