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RCV XMT SIG GND
CN8240 & CN8260 Series Communications & Options
1
Option -C2: RS-232 (one-to-one) Communications
Option Description: Provides a one-to-one connection between the controller and an RS-232 port. Computers,
PLCs, or dumb terminals may be used to set and access controller data.
Load 5 amp fuse
Option Description: NO (Normally open) relay contact is closed when either alarm is active. The relay life is greater
than 100,000 operations at 5 operations per second switching full load.
*Connect load and supply voltage per the following table:
Relay, N.O.
Alarm Output
Option -AL1, -AL2: Relay, N.O. Alarm Output
Load 5 amp fuse
Supply voltage*
Supply voltage*
OUTPUT 2
N.O.
C
N.O.
2
3
12
13
14
15
16
17
18
23
24
8
9
1
0
19
2
0
21 22
4
5
6
7
N.O.
C
N.O.
C
ALARM 1
L1
L2
ALARM 2
120-250 V
50-60 Hz
+
–
+
RS-232
Communications
Load Type 5 A Voltage Limit
Resistive dc 30 Vdc
Inductive ac (L/R = 7 ms) 20 Vdc
Resistive ac 250 Vac
Inductive ac (pF = 0.4) 150 Vac
Motor, ac, 1/6 hp 250 Vac
Tungsten Lamp, 360 W 120 Vac
10002 Athena Omega:900M124U00.qxd 5/13/08 2:39 PM Page 4