Nac 1-2 Class B; X602 Jumper - Enable/Disable Degraded Mode For Nac 1 Class A Or Nac 1-1 Class B; X603 Jumper - Enable/Disable Degraded Mode For Nac 1-2 Class B; X604, X605, X606 Jumper - Nac 1 Class A/B - Siemens FCI2016-U1 Mounting & Installation

2.5.3 X602 jumper – ENABLE/DISABLE DEGRADED MODE for
X602 Jumper position
3 - 2
3
2
1
1 - 2
2.5.4 X603 jumper – ENABLE/DISABLE DEGRADED MODE for
X603 Jumper position
3 - 2
3
2
1
1 - 2
2.5.5 X604, X605, X606 Jumper – NAC 1 class A/B
X604 Jumper position
X605
X606
3 - 2
3
1 - 2
2
1
Building Technologies
Siemens Industry, Inc.
NAC 1 class A or NAC 1-1 class B
Errors of the power PC are displayed on the PMI & mainboard when degraded mode is
activated.
Function Meaning
Enable degrade Enable degraded mode for NAC 1 class A or NAC 1-1 class B.
Circuit will activate the notification appliances if degraded
mode is activated and an alarm is present.
Disable degrade Disable degraded mode for NAC 1 class A or NAC 1-1 class B.
Circuit will not activate the notification appliances if degraded
mode is activated and an alarm is present.

NAC 1-2 class B

Errors of the power PC are displayed on the PMI & mainboard when degraded mode is
activated.
Function Meaning
Enable degrade Enable degraded mode for NAC 1-2 class B. Circuit will not
activate the notification appliances if degraded mode is
activated and an alarm is present.
Disable degrade
Disable degraded mode for NAC 1-2 class B. Circuit will not
activate the notification appliances if degraded mode is
activated and an alarm is present.
Class A/B setting of the onboard NAC circuit
Function Meaning
Class A Configures periphery board NAC 1 for class A wiring
Class B
Configures periphery board NAC 1-1 and NAC 1-2 for class B
wiring
The class A/B configuration of the jumpers on the periphery board must be transferred
in the Engineering tool set. An error is generated if the configurations do not match.
Periphery board (500p) FCI2017
NAC circuits
A6V10315038_f_en_--
2
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2016-02-25