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External Connection Access
Connections to the front of the electronics chassis, such as TTL and relay cables,
are usually routed to the back of the detector through the cable chase in the bottom
of the electronics chassis. They may also be passed through slots at the front of the
detector. Cables exit the Dionex ED50A through an opening in the rear panel (see
Figure B-1).
2.3
Electronics Chassis
The electronics chassis is located immediately behind the front door of the Dionex
ED50A. The chassis contains several electronics cards (printed circuit boards)
that are used to control the Dionex ED50A. Various connectors on the cards allow
communication between the Dionex ED50A and other system modules and
accessories. Figure 2-3 identifies the cards and their connectors.
Do not remove any of the electronics cards from the detector. There
are no user-serviceable components on the cards. If servicing is
required, it must be performed by qualified personnel using
appropriate electrostatic discharge (ESD) handling procedures.
PWR S PY
45W
T his is a Dionex
AutoS uppression Detec tor
Connec t Y our S uppressor Here
AT LAS-COMP AT IBLE
Doc. 065551-01 6/13
S LOT 1
S LOT 2
EXT -MEM
S CR -2
RECORDER
S RS /AES VOLT S
DS 3 AMPS
CD T EMP
EC DRIVE
S COPE S YNC
T M
Figure 2-3. Electronics Chassis Components
(Located behind front door)
S LOT 3
S LOT 4
ED50-S P
LAN-512K
RL Y -1
OUT
-
+
RL Y -2
OUT
+
EC
T T L -1
-
CELL
OUT
+
T T L -2
PH
-
OUT
J9
+
T T L -1
+ 10V
-
IN
+
T T L -2
GND
-
IN
COND
J1
+
CELL
T T L -3
-
IN
DS 3
+
T T L -4
J10
-
IN
J2
S RS
AES
J3
2 • Description
S LOT 5
CPU/RL Y
F
R
O
N
T
P
A
N
E
L
POWER S UPPL Y
GREEN - OK
RED - FAULT
2-7
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