Note Consult the safety voltages for each module within your PXIe-5842 instrument to understand the aggregate safety voltage information for the instrument.
Notice The use of some ports is reserved. Make connections to the ports of your PXIe-5842 instrument only as indicated in the PXIe-5842 User Manual.

PXIe-5842 Safety Voltages

Note This section applies to the PXIe-5842 module.
Table 38. Safety Voltages
RF IN absolute maximum input power +27 dBm with reference level >20 dBm
RF OUT <0,1> absolute maximum reverse power +20 dBm
RF OUT: LO IN absolute maximum input power +15 dBm
RF OUT: LO OUT absolute maximum reverse power +10 dBm
RF IN: LO IN absolute maximum input power +15 dBm
RF IN: LO OUT absolute maximum reverse power +10 dBm
REF: IN maximum input voltage
  • Frequency ≥10 MHz: 5 V pk-pk
  • Frequency <10 MHz: 2 V pk-pk
REF: OUT absolute maximum reverse voltage 2 V pk-pk
PFI 0 absolute maximum input range -0.5 V to 5 V
DIO absolute maximum input range -0.5 V to 5 V
Notice The DIO port is not an HDMI interface. Do not connect the DIO port on the to the HDMI interface of another device. NI is not liable for any damage resulting from such signal connections.
MGT absolute maximum input range
  • ≤6.6 Gbps: 150 mV pk-pk to 2 V pk-pk
  • >6.6 Gbps: 150 mV pk-pk to 1.25 V pk-pk
CTRL absolute maximum input 1.8 V
Notice The CTRL port is not an HDMI interface. Do not connect the CTRL port on the to the HDMI interface of another device. NI is not liable for any damage resulting from such signal connections.
PULSE: IN, PULSE: OUT absolute maximum input 5 V
Measurement Category CAT I/O

Measurement Category

Caution Do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV.
Attention Ne pas connecter le produit à des signaux dans les catégories de mesure II, III ou IV et ne pas l'utiliser pour effectuer des mesures dans ces catégories.
Warning Do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV, or for measurements on MAINs circuits or on circuits derived from Overvoltage Category II, III, or IV which may have transient overvoltages above what the product can withstand. The product must not be connected to circuits that have a maximum voltage above the continuous working voltage, relative to earth or to other channels, or this could damage and defeat the insulation. The product can only withstand transients up to the transient overvoltage rating without breakdown or damage to the insulation. An analysis of the working voltages, loop impedances, temporary overvoltages, and transient overvoltages in the system must be conducted prior to making measurements.
Mise en garde Ne pas connecter le produit à des signaux dans les catégories de mesure II, III ou IV et ne pas l'utiliser pour des mesures dans ces catégories, ou des mesures sur secteur ou sur des circuits dérivés de surtensions de catégorie II, III ou IV pouvant présenter des surtensions transitoires supérieures à ce que le produit peut supporter. Le produit ne doit pas être raccordé à des circuits ayant une tension maximale supérieure à la tension de fonctionnement continu, par rapport à la terre ou à d'autres voies, sous peine d'endommager et de compromettre l'isolation. Le produit peut tomber en panne et son isolation risque d'être endommagée si les tensions transitoires dépassent la surtension transitoire nominale. Une analyse des tensions de fonctionnement, des impédances de boucle, des surtensions temporaires et des surtensions transitoires dans le système doit être effectuée avant de procéder à des mesures.

Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.

Note Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV.

PXIe-5655 Safety Voltages

Connect only voltages that are below these limits.

Table 39. Safety Voltages
Absolute maximum input power (LO 0/1 IN) +17 dBm
Absolute maximum reverse power (LO 0/1 OUT) +18 dBm
Maximum input voltage (REF IN) 3.3 V pk-pk
Measurement Category CAT I/O

Measurement Category

Warning Do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV, or for measurements on MAINs circuits or on circuits derived from Overvoltage Category II, III, or IV which may have transient overvoltages above what the product can withstand. The product must not be connected to circuits that have a maximum voltage above the continuous working voltage, relative to earth or to other channels, or this could damage and defeat the insulation. The product can only withstand transients up to the transient overvoltage rating without breakdown or damage to the insulation. An analysis of the working voltages, loop impedances, temporary overvoltages, and transient overvoltages in the system must be conducted prior to making measurements.
Mise en garde Ne pas connecter le produit à des signaux dans les catégories de mesure II, III ou IV et ne pas l'utiliser pour des mesures dans ces catégories, ou des mesures sur secteur ou sur des circuits dérivés de surtensions de catégorie II, III ou IV pouvant présenter des surtensions transitoires supérieures à ce que le produit peut supporter. Le produit ne doit pas être raccordé à des circuits ayant une tension maximale supérieure à la tension de fonctionnement continu, par rapport à la terre ou à d'autres voies, sous peine d'endommager et de compromettre l'isolation. Le produit peut tomber en panne et son isolation risque d'être endommagée si les tensions transitoires dépassent la surtension transitoire nominale. Une analyse des tensions de fonctionnement, des impédances de boucle, des surtensions temporaires et des surtensions transitoires dans le système doit être effectuée avant de procéder à des mesures.

Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.

Note Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV.

PXIe-5543 Safety Voltages

Connect only voltages that are below these limits.

Absolute maximum input power (SWITCH IN)

+20 dBm

Absolute maximum reverse power (SWITCH OUT)

+18 dBm

Absolute maximum input power (IF IN 0/1)

+20 dBm

Absolute maximum reverse power (IF OUT 0/1)

+20 dBm

Absolute maximum input power (RF IN/OUT 0/1)

+20 dBm

Absolute maximum reverse power (RF IN/OUT 0/1)

+20 dBm

RMM-5585 Safety Voltages

Connect only voltages that are below these limits.

Front Panel Maximum Power

RF IN maximum power

Reference Level > +18 dBm

+27 dBm

Reference Level ≤ +18 dBm

+20 dBm

RF OUT maximum reverse power

+23 dBm

Rear Panel Maximum Power

IF IN maximum power

+15 dBm

IF OUT maximum reverse power

+20 dBm

DOWNCONVERTER LO IN maximum power

+20 dBm

UPCONVERTER/SHARED LO IN maximum power

+20 dBm

DC power input

DC voltage

12.0 V DC

DC current

7 A

PXIe-5633 Safety Voltages

Connect only voltages that are below these limits.

PORT 1, PORT 2

Table 40. Absolute Maximum Input Power for VST Passthrough* When Operating as Vector Signal Analyzer

*When used within PXIe-5842 VST with S-Parameters.
Reference Level ≤ 20 dBm Reference Level + 5 dB
Table 41. Reference Level > 20 dBm
Note Derate by 2 dB when source match is worse than -6 dB.
0.3 GHz to 2 GHz +25 dBm (CW RMS)
>2 GHz to 8 GHz +26 dBm (CW RMS)
>8 GHz to 26.5 GHz +27 dBm (CW RMS)
Table 42. Absolute Maximum Reverse Power for VST Passthrough* When Operating as Vector Signal Generator

*When used within PXIe-5842 VST with S-Parameters.
Output Power ≤ +16 dBm +25 dBm
Output Power ≤ +20 dBm +20 dBm
Table 43. Absolute Maximum Input Power for VNA Load Port
Test Receiver Attenuation < 8 dB +20 dBm
Test Receiver Attenuation ≥ 8 dB +27 dBm
Table 44. Absolute Maximum Reverse Power for VNA Reflection Port
Notice In certain conditions, such as generating into a short, reflections of signals that otherwise comply with these limits may exceed these values and damage the instrument.
RF Output Power ≤ +10 dBm, Test Receiver Attenuation < 8 dB +15 dBm
RF Output Power ≤ +20 dBm, Test Receiver Attenuation ≥ 8 dB +20 dBm

IF Ports

Table 45. IF Ports
IF IN absolute maximum input power +18 dBm
IF OUT absolute maximum reverse power +18 dBm

Other Ports

Table 46. Other Ports
SWITCH IN absolute maximum input power +14 dBm
SWITCH OUT absolute maximum reverse power +10 dBm
LO IN absolute maximum input power +12 dBm
LO OUT absolute maximum reverse power +10 dBm
REF IN maximum input voltage 5 Vpk-pk
REF OUT absolute maximum reverse voltage 2 Vpk-pk
PFI 0, PFI 1 absolute maximum input range -0.5 V to 5 V
Measurement Category CAT I/O

Measurement Category

Caution Do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV.
Attention Ne pas connecter le produit à des signaux dans les catégories de mesure II, III ou IV et ne pas l'utiliser pour effectuer des mesures dans ces catégories.

Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.

Note Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV.

CAL-5501 Safety Voltages

Connect only voltages that are below these limits.

PORT A, PORT B absolute maximum input power

+24 dBm

PORT A, PORT B absolute maximum input voltage

±10 V DC

Measurement Category

CAT I/O

Measurement Category

Caution Do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV.
Attention Ne pas connecter le produit à des signaux dans les catégories de mesure II, III ou IV et ne pas l'utiliser pour effectuer des mesures dans ces catégories.

Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.

Note Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV.