Figure 4-22 Jtag Test Jumper - Sun Microsystems Enterprise 3500 System Reference Manual

JTAG Test Jumper
FIGURE 4-22
3. Align the PCI card so that the PCI bus connector mates with the PCI+ I/O board
PCI bus connector, making sure that the external connector end of the card is
retained on one side by the opening in the metal catch mechanism and the
opposite end is properly aligned to accept the locking thumbscrew ( ).
FIGURE 4-23
Chapter 4 I/O+ Boards and Components 4-27