HP Netserver Service Handbook, Volume 1 - Low End

82
Environmental Services Monitoring (ESM) Module
WARNING The ESM is not hot-swappable. You must shut off the HP Rack Storage/8 AC
supply before removing the ESM from the enclosure.
Bus 1 Input
C
o
n
n
e
c
o
r
B
u
s
2
I
n
p
u
t
Connecor
Bus 2 Output
Connecor
Bus 1 Output
Connecor
Locking and
Release Mechanis
m
Locking and
Release Mechanism
Fault
LED
Power
LED
Dial
(Not Used)
Option
S
w
i
t
c
h
SCSI Connectors Bus 1
Provides two 68-pin, high-density SCSI interface connections for
SCSI drive slots 1,2,3, and 4.
SCSI Connectors Bus 2
Provides two 68-pin, high-density SCSI interface connections for
SCSI drive slots 4, 5, 6, and 7.
Option Switch Switch one controls the operation of SCSI bus one and switch two
controls SCSI bus two as explained below.
Dial
Sets the module identification. It is not used in the HP Rack
Storage/8 application.
Power LED
Shows green when the module has power .
Over Temperature LED Goes on when the enclosure's ambient temperature is too high for
proper operation.
Specifications
Temperature
Operating
5° to 35° C (40° to 95° F)
Non-operating
–40° to 65° C (-40° to -140° F)
Humidity (noncondensing)
Operating
20% to 80% relative humidity