Component Replacement Procedures
Replacing the USIOM Board
11
Figure 7. Remove Two T15 Screws Securing Comm Plate
Figure 8. Remove Two Corner T10 Screws From Power Supply Board
Figure 9. Remove Lower Left Corner USIOM Board T15 Screw
CDIM 1
CDIM 2
ETH 2
ETH
3
U
S
B 1
U
S
B 2
ETH 1
S
ERIAL 1
S
ERIAL 2
EXPAN
S
ION
EB25918024
1
2
3
4
5
6
W
IRING TERMINAL
S
NTRIN
S
IC
S
AFETY
. INTRIN
S
ICALL
Y
S
AFE CIRCUIT
S
ARE AL
S
O RA
TED
ECTION T
O
I.
S
. T
A
NK
PR
OBE
S
AND
S
EN
S
OR
S
U
S
ED IN CLA
SS
1
AZARDOU
S
LOCA
T
ION
S
.
MAX. AC
INPUT RATING
S
120/240 Vac, 2.0 A
MAX. RELAY
CONTACT RATING
120/240 Vac, 5A
3
0 Vdc, 5A
FU
S
E RATING, 5A
N
G
L
0°C
≤
T
a
≤
50°C
FOR
S
UPPLY CONNECTION, U
S
E WIRE
S
RATED FOR AT LEA
S
T 90°C.
RELAY 2
RELAY 1
F1
F2
5A
(SLO-BLO)
F4
5A
F7
EB
1
2
3
4
5
6
7
8
9
10
11
12
INTRIN
S
ICALL
Y
S
AF
E
W
IRING TERMINAL
S
W
ARNIN
G
:
S
U
B
S
TIT
U
TI
O
N
O
F
CO
MP
O
NENT
S
MA
Y IMP
AIR INTRIN
S
IC
S
AFETY
. INTRIN
S
IC
ALL
Y
S
AFE
C
IR
CU
IT
S
ARE AL
S
O
RA
TED
A
S
C
LA
SS
2
C
IR
C
UIT
S
. TERMINAL
S
ARE F
O
R
CO
NNE
C
TI
O
N T
O
I.
S
. T
A
NK
PR
O
BE
S
AND
S
EN
S
O
R
S
U
S
ED IN
C
LA
SS
1
G
R
O
UP D HAZARD
O
U
S
L
OC
AT
IO
N
S
.
MAX. AC
INPUT RATING
S
120/240 Vac, 2.0 A
MAX. RELAY
CONTACT RATING
120/240 Vac, 5A
3
0 Vdc, 5A
FU
S
E RATING, 5A
250 Vac TYPE T
(
S
LO-BLO)
MAX. EXTERNAL
CONTACT CLO
S
URE
CIRCUIT RATING
S
12 Vdc, 0.015A
N
G
L
0°C
≤
T
a
≤
50°C
FOR
S
UPPLY CONNECTION, U
S
E WIRE
S
RATED FOR AT LEA
S
T 90°C.
RELAY 2
RELAY 1
RTN
12V
PWR STAT
PWR INT
F1
F2
5A
(SLO-BLO)
F4
5A
(SLO-BLO)
F6 0.75A (SLO-BLO)
F7
