The Back Plane
167
User’s Guide: Version 1.2
Normal Operation Mode
The Back Plane
As shown in figure 3, the back plane contains all the accessible ports for
the V!CAS. For information on the individual pin assignments of each
port, see Appendix A.
Line A
Line B
ERR
On
BOOTmonitor is in use (or awaiting keyboard
input).
Blinking
BOOTmonitor decompressing boot image.
LED
State
Meaning
PWR
On
Power is being supplied.
FAX
–
Reserved for future updates.
LAN
On
Packet being sent over the LAN inter-
face.
Line A,
Line B
On
Data transmission on B-Channel 1
(Line A) or B-Channel 2 (Line B)
ERR
On
(intermitent)
Collision detected on the LAN.
(each on state denotes a collision).
On
(constant)
The LAN cabling is not connected
(no 10BaseT cable found)
LED(s)
State
Meaning
Figure 3:
Back Plane
