1840 Series – Signal and Dataline Protector
Typical Connections
Unbalanced Interface, Two Individual Circuits, Such as RS-232
Model No. Designator
BLDG. 1
BLDG. 2
How To Order
1840 - nn - An
Voltage
05 = 5 V
12 = 12 V
24 = 24 V
Clamp
A1 = DIN-1
A3 = DIN-3
XMTR
E2
E3
L2
L3
~
~
P/N 1840
L2
L3
P/N 1840
E2
E3
RCVR
~
~
RCVR
E1
GND
L1
L1
GND
E1
XMTR
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
DIN-1 clamp.
(Example: 1840-12-A1)
Balanced or Differential Interface, Such as RS-422
BLDG. 1
BLDG. 2
E2
XMTR
E3
E1
P/N 1840
~
~
L2
L3
L2
L3
P/N 1840
E2
E3
RCVR
FEED-THRU(E3/L3)
GROUNDING SCREW
~
~
GND
L1
L1
GND
E1
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
XMTR
I
~
~
E2
POWER
SUPPLY
250
OHMS
I
RECEIVER
1-5 VOLTS
E3
E1
P/N 1840
L2
L3
L1
RED
RED /WHITE
~
~
GND
BOURNS
1669
BLK
BLACK /WHITE
GREEN
Add -A3 to base model number for
DIN-3 clamp.
(Example: 1840-12-A3)
MOUNTING/GROUNDING SCREW
File No.
1800SERS3
COMMON
GND.
BOURNS
PROTECTOR
P/N 1669
+
-
45.47
(1.79)
DIN-3 RAIL
(TS-35/EN50022)
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.
DIMENSIONS:
MM
(INCHES)
Product Dimensions
GND
LINE
L1 L3 L2
EQPT
E2 E3 E1
48.51
(1.91)
E3/L3 GROUNDING LINK
83.31
(3.28)
DIMENSIONS:
18.80
3.18
(0.74) (0.125)
MM
(INCHES)
2.36
(0.093)
ALIGNMENT PIN
9.53
(0.375)
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.
BOURNS [ BOURNS ELECTRONIC SOLUTIONS ]
