Specifications

EMC-CS-2009.1
© Copyright Ford Motor Company – All Rights Reserved Page 112 of 121
February 11, 2010
Figure F-2: Transient Generator (External Connections)
E
G
ARB
E
G
ARB
Mode 1
Mode 2, 3
Mode 1
Mode 2, 3
CD
Short C and D for CI 220
Open C and D for RI 130
+
_
PS
A
G
Pulse C
Pulse
A1, A2
Test Generator
Metal Enclosure
BNC
Connectors
G
G
C
B
Connect
test generator metal
case to test setup
ground plane when
in use
SW1SW1
SW2SW2
SW3SW3
SW4SW4
Table F-1: CI 220 Transient Generator Switch Settings
Pulse Mode * SW1 SW2 SW3 SW4
A1 1, 2 Closed Closed Closed Closed
A2-1 1 Closed Open Open Open
A2-1, C-1 2 Closed Open Open Open
A2-2, C-2 2 Closed Open Closed Open
A2-1, C-1 3 Open Open Open Open
A2-2, C-2 3 Open Open Closed Open
* See Annex D for description of Mode operating conditions
The transient generator uses a Potter and Brumfield (P&B) 12 VAC relay. Specifications for this relay are listed in Table F-
2. While the relay is readily available in North America, it may be difficult to locate in other parts of the world.
However, almost any 12 AC relay can be used for this performing testing per this specification. Before using alternative
relays, voltage measurements shall be performed and compared to those waveforms illustrated in this annex. The results of
these measurements shall be reviewed and approved by the FMC EMC department prior to using an alternative relay.
When using these relays for the purposes delineated in this specification, it is recommended that the relay be replace after 100
hours of usage.