Reference Manual

PMAC-Mini PCI Hardware Reference Manual

E-Point Jumper Descriptions 25

E85, E87, E88: Analog Power Source Configuration

E-Point and

Physical Layout

Location Description Default

E85

E88

E87

E85

Jump pin 1 to pin 2 to allow analog +V to come from

digital side -- P1 or TB1 -- ties amplifier and PMAC

Mini PCI power supply together, defeats opto-isolation.

Remove jumper to keep analog +V separate from

digital +12V.

Note: If E85 is changed, E88 and E87 must also be

changed

Also see E90.

No jumper

E87

E88

E87

E85

Jump pin 1 to pin 2 to tie analog common AGND to

digital common GND -- defeats opto-isolation.

Remove jumper to keep AGND and GND separate.

Note: If E87 is changed, E85 and E88 must also be

changed

Also see E90.

No jumper

E88

E87

E85

Jump pin 1 to pin 2 to allow analog -V to come from

digital side -- P1or TB1 – ties amplifier and PMAC

Mini PCI power supply together, defeats opto-isolation.

Remove jumper to keep analog -V separate from digital

-12V.

Note: If E88 is changed, E85 and E87 must also be

changed

Also see E90.

No jumper