Radstone PME 68-1B, Manual

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VMEBUS Interface
SYSCLK Signal
The on-board SYSCLK driver can be isolated from the VMEbus via a jumper in
position BR21.
Jumper Inserted SYSCLK connected to VMEbus
No Jumper SYSCLK signal not connected to VMEbus
Figure 36 shows the location of jumper BR21.
SYSRESET* Signal
Jumper field BR2 defines whether the board drives, receives, or ignores the VMEbus
signal SYSRESET*.
Table 22 lists all permitted jumper settings and the corresponding modes. Figure 36
shows the location of jumper field BR2.
Table 22 SYSRESET* Settings
BR2 Connection Effect on PME68-1B
Between
# 1-# 2, # 3-# 4 Receives SYSRESET*
# 1-# 3, # 2-# 4 Drives SYSRESET* (default condition)
No Connections SYSRESET* ignored (except by RTC)
Figure 36 Location of Jumper Field BR2 and BR21
4 2
3 1
BR2
BR21
BAT
PME68-1B Manual
Page 69 Issue 5