Description
The part number 181580C-01 refers to a high-quality component categorized under SCXI & Legacy. An alternate part number for this product is 777687-20, which may be used for reference in certain contexts. The specific model associated with these part numbers is the SCXI-1320, which is designed to function as a High-Voltage Terminal Block.
This terminal block is compatible with several models, including SCXI-1121, SCXI-1120D, SCXI-1126, SCXI-1120, and SCXI-1125. It is equipped with 18 screw terminals and 2 additional screw terminals dedicated to chassis ground connections. The signal attachment capabilities of the SCXI-1320 include 8 pairs for SCXI-1120/D, SCXI-1125, SCXI-1126, and also 4 pairs for SCXI-1121 inputs, along with 4 pairs for excitation outputs.
An important feature of the SCXI-1320 is its onboard temperature sensor, which allows for cold-junction compensation, enhancing its utility in various applications. To install this terminal block, several tools are required, including Number 1 and 2 Philips-head screwdrivers, wire cutter, wire insulation stripper, long-nose pliers, and a 1/8 in. flathead screwdriver.
Despite its obsolete status announced by National Instruments, the SCXI-1320 remains available for purchase and repairs through Apex Waves. This ensures that users of legacy systems can continue to rely on the high-voltage terminal block for their technical needs.
| Attribute | Details |
|---|---|
| Part Number | 181580C-01 |
| Alternate Part Number | 777687-20 |
| Category | SCXI & Legacy |
| Model | SCXI-1320 |
| Type | High-Voltage Terminal Block |
| Compatibility | SCXI-1121, SCXI-1120D, SCXI-1126, SCXI-1120, SCXI-1125 |
| Screw Terminals | 18 |
| Chassis Ground Connections | 2 screw terminals |
| Signal Attachment | 8 pairs for SCXI-1120/D, SCXI-1125, SCXI-1126; 4 pairs for SCXI-1121 inputs, 4 pairs for excitation outputs |
| Onboard Temperature Sensor | Yes, for cold-junction compensation |
| Installation Tools Required | Number 1 and 2 Philips-head screwdrivers, wire cutter, wire insulation stripper, long-nose pliers, 1/8 in. flathead screwdriver |
| Obsolete Status | Announced by National Instruments, available for purchase and repairs by Apex Waves |
Question 1: What is the SCXI-1320’s alternate part number?
Answer 1: 777687-20
Question 2: How many screw terminals does the SCXI-1320 have?
Answer 2: 18 screw terminals plus 2 for ground
Question 3: Can the SCXI-1320 be used with the SCXI-1121 module?
Answer 3: Yes, it’s compatible with SCXI-1121.
Question 4: Does the SCXI-1320 feature an onboard temperature sensor?
Answer 4: Yes, it has an onboard temperature sensor.
Question 5: Is the SCXI-1320 still available despite being obsolete?
Answer 5: Yes, available through Apex Waves.




