2
Accela 600 Pump or Accela 1250 Pump Installation
Back Panel Connections
Thermo Scientific
Accela 600 and 1250 Pump Hardware Manual
25
Additional Hardware Configurations
Use the D-sub 25-pin connector on the back panel of the Accela pump to connect the pump
to an Accela Open Autosampler or a valve interface module.
lists the pin out descriptions for the D-sub 25-pin connector.
IMPORTANT
Use either the D-sub 25 pin connector or pins 1 through 8 to connect to
an external device. Never use both of these connectors at the same time.
Table 11.
D-sub 25 pin connector pin out descriptions
Pin
Description
Pin
Description
Pin
Description
1
Rel. 1 Input
10
Dig. In2+
19
Rel. 4 NC
2
Rel. 1 NC
11
Rel. Error In.
20
GND
3
Rel. 2 NO
12
Rel. Error NC
21
GND
4
Rel. 3 Input
13
GND
22
Dig. In1-
5
Rel. 3 NC
14
Rel. 1 NO
23
Dig. In2-
6
Rel. 4 NO
15
Rel. 2 Input
24
Rel. Error NO
7
Pressure Out
16
Rel. 2 NC
25
+5 Vdc
8
+24 Vdc
17
Rel. 3 NO
9
Dig. In1+
18
Rel. 4 Input