1840 Series – Signal and Dataline Protector
Typical Connections
Unbalanced Interface, Two Individual Circuits, Such as RS-232
How To Order
1840 - nn - An
Model No. Designator
BLDG. 1
BLDG. 2
Voltage
05 = 5 V
12 = 12 V
24 = 24 V
P/N 1840
P/N 1840
GND
XMTR
RCVR
E2
L2
L3
L1
L2
L3
L1
E2
E3
RCVR
XMTR
E3
E1
GND
E1
Clamp
A1 = DIN-1
A3 = DIN-3
EQPT. COMMON
AND/OR GND.
COMMON
GND.
COMMON
GND.
EQPT. COMMON
AND/OR GND.
How To Order (Clamp)
Add -A1 to base model number for
Balanced or Differential Interface, Such as RS-422
DIN-1 clamp.
BLDG. 1
BLDG. 2
(Example: 1840-12-A1)
FEED-THRU(E3/L3)
GROUNDING SCREW
P/N 1840
P/N 1840
GND
E2
E3
E1
L2
L3
L1
L2
L3
L1
E2
E3
E1
XMTR
RCVR
GND
28.96
(1.14)
EQPT. COMMON
AND/OR GND.
COMMON
GND.
COMMON
GND.
EQPT. COMMON
AND/OR GND.
49.02
(1.93)
DIN-1 RAIL
(TS-32/EN50035)
Current Loop, 4-20 mA
CONTROL ROOM
Add -A3 to base model number for
DIN-3 clamp.
XMTR
I
P/N 1840
E2
RED
BLK
L2
L3
L1
RED/WHITE
BLACK /WHITE
GREEN
POWER
SUPPLY
250
(Example: 1840-12-A3)
BOURNS
1669
E3
OHMS
GND
E1
MOUNTING/GROUNDING SCREW
I
RECEIVER
1-5 VOLTS
BOURNS
File No.
1800SERS3
COMMON
GND.
PROTECTOR
P/N 1669
45.47
(1.79)
Grounding: The 8-32 mounting screw and attached clamp, and hence the DIN-1 (TS-32)
or DIN-3 (TS-35) rail, serve as the protector ground. The rail (or 8-32 mounting screw if the
clamp is not used) should be connected to the facility ground via an AWG #6 or larger copper
wire. This wire should be as short and straight as possible. Single point grounding will provide
better protection and will permit the protector to be located a distance from the equipment.
DIN-3 RAIL
(TS-35/EN50022)
MM
DIMENSIONS:
(INCHES)
Product Dimensions
GND
MM
(INCHES)
48.51
(1.91)
DIMENSIONS:
18.80
(0.74)
3.18
(0.125)
2.36
(0.093)
E3/L3 GROUNDING LINK
9.53
(0.375)
83.31
(3.28)
ALIGNMENT PIN
8-32UNF-2A
17.80
(0.70)
LG
REV. A 02/14
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.