Datasheet

Intel® Server System SR2500AL Peripheral and Hard Drive Sub-System
Revision – 1.00
Intel order number D31980-004
43
The IDE Optical drive assembly includes an interposer board which plugs into the back of the
optical drive. The interposer board is a card-edge type card that eliminates the need for cable
connections. As the drive assembly is inserted into the drive bay, the edge connector is blind
mated to a slot connector on the backplane.
The interposer board has two connectors. The first connector is the industry standard 50-pin
IDE interface used by all slim-line optical devices. The second connector is the card edge used
to connect directly to the hot-swap backplane board.
AF000042
Figure 28. 50-pin Connector to Slimline Optical Device
Table 39. J1L1 50-pin Connector to Slimline Optical Device
PIN SIGNAL NAME PIN SIGNAL NAME
1 TP_LCH 26 GND
2 TP_RCH 27 IDE_SIORDY
3 TP_GND 28 IDE_SDDACK_L
4 GND 29 IRQ_IDE_S
5 RST_IDE_S_L 30 IDEIO16_L
6 IDE_SDD8 31 IDE_SDA1
7 IDE_SDD7 32 IDE_CBL_DET_S
8 IDE_SDD9 33 IDE_SDA0
9 IDE_SDD6 34 IDE_SDA2
10 IDE_SDD10 35 IDE_SDCS0_L
11 IDE_SDD5 36 IDE_SDCS1_L
12 IDE_SDD11 37 IDE_SEC_HD_ACT_L
13 IDE_SDD4 38 P5V
14 IDE_SDD12 39 P5V
15 IDE_SDD3 40 P5V
16 IDE_SDD13 41 P5V
17 IDE_SDD2 42 P5V
18 IDE_SDD14 43 GND
19 IDE_SDD1 44 GND
20 IDE_SDD15 45 GND
21 IDE_SDD0 46 GND
22 IDE_SDDREQ 47 IDEP_ALE_H
23 GND 48 GND
24 IDE_SDIOR_L 49 UNUSED
25 IDE_SDIOW_L 50 UNUSED