Roche Cobas u411 / Cobas 6500 Bi-Directional LIS Interfacing Guide
Complete engineering specification, HL7/ASTM protocols, pinouts, and parameter mapping for Roche Cobas u411 / Cobas 6500 on AILS Cloud LIMS.
1. Roche Cobas u411 / Cobas 6500 Interfacing Overview & Diagnostic Workflow
The Roche Cobas u411 / Cobas 6500 is a precision diagnostic analyzer designed for clinical laboratory testing. Connecting the Roche Cobas u411 / Cobas 6500 directly to AILS Cloud LIMS eliminates manual data entry, prevents typographical identification errors, and delivers verified results directly to ordering physicians and hospital EMRs.
AILS Gateway continuously monitors the Roche Cobas u411 / Cobas 6500 connection, capturing transmitted test observations within 200 milliseconds of analytical completion.
Results are checked against age- and gender-adjusted reference ranges, delta check baselines, and quality control (QC) Levey-Jennings rules before digital sign-off.
2. Roche Cobas u411 / Cobas 6500 RS-232 Serial Port & Pinout Configuration
RS-232 DB9 Serial Cable (COM3 / 9600 Baud) or TCP/IP Network Connection.
[Instrument DB9] [AILS Gateway PC] Pin 2 (TxD / Data Out) ---------> Pin 2 (RxD / Data In) Pin 3 (RxD / Data In) <--------- Pin 3 (TxD / Data Out) Pin 5 (GND / Signal) <========> Pin 5 (GND / Signal) Pin 7 (RTS) & Pin 8 (CTS) [Loopback or None] Baud: 9600 bps | Data Bits: 8 | Parity: None | Stop: 1
3. Roche Cobas u411 / Cobas 6500 HL7 v2.x Message Stream
Below is a validated communication frame transmitted between the Roche Cobas u411 / Cobas 6500 and AILS LIS middleware:
<STX>1H|\^&|||Roche Cobas u411|||||||P|1394-97|20260815171000<CR><ETX>4E<CR><LF> <STX>2P|1||||Gray^Jennifer|||F<CR><ETX>2B<CR><LF> <STX>3O|1|ACC2026081564||^^^URINE_STRIP|||||||A<CR><ETX>5C<CR><LF> <STX>4R|1|^^^GLU|NEG||mg/dL|N||F<CR><ETX>12<CR><LF> <STX>5R|2|^^^PRO|NEG||mg/dL|N||F<CR><ETX>15<CR><LF> <STX>6R|3|^^^LEU|NEG||/uL|N||F<CR><ETX>18<CR><LF> <STX>7R|4|^^^NIT|NEG|||N||F<CR><ETX>10<CR><LF> <STX>8R|5|^^^SG|1.020|||N||F<CR><ETX>2A<CR><LF> <STX>9R|6|^^^PH|6.5|||N||F<CR><ETX>1F<CR><LF> <STX>10L|1|N<CR><ETX>0A<CR><LF>
4. Roche Cobas u411 / Cobas 6500 Clinical Parameter LOINC & Reference Range Dictionary
| Instrument Code | LOINC Code | Clinical Parameter Name | Standard Units | Default Reference Range |
|---|---|---|---|---|
| GLU | 25428-4 | Glucose Urine Dipstick | mg/dL | Negative |
| PRO | 2888-6 | Protein Urine Dipstick | mg/dL | Negative |
| LEU | 20456-0 | Leukocyte Esterase | /uL | Negative |
| NIT | 5802-4 | Nitrite Urine Dipstick | Call | Negative |
| SG | 2965-2 | Specific Gravity | SG | 1.005 - 1.030 |
| PH | 5803-2 | pH Urine | pH | 5.0 - 8.0 |
5. Roche Biomedical Engineering Field Notes & Gotchas
In Cobas u411 setup menu, configure Host Interface to ASTM Mode with Baud Rate 9600.
Ensure color compensation and specific gravity refractive index calibration are active.
Positive protein or leukocyte findings can automatically trigger digital sediment microscopy.
Frequently Asked Questions: Roche Cobas u411 / Cobas 6500 LIS Interfacing
Common biomedical engineering questions regarding connection, worklist setup, and data capture with AILS Cloud LIMS.
Q: What communication protocol does Roche Cobas u411 use?
Roche Cobas u411 uses ASTM E1381/E1394 standard protocol over RS-232 serial port at 9600 baud.
Q: What urine test strip parameters are extracted from Cobas u411?
Parameters include Specific Gravity, pH, Leukocytes, Nitrite, Protein, Glucose, Ketones, Urobilinogen, Bilirubin, Blood/Hemoglobin, and visual Color/Clarity.
Q: How does Cobas u411 connect with Cobas 6500 digital microscopy workcells?
The Cobas 6500 integrates the u601 strip module with the u701 digital sediment analyzer, transmitting combined chemical dipstick and high-resolution microscopy image tiles to AILS LIMS.
Q: What serial cable is needed for Cobas u411?
A standard DB9 Female Null Modem serial cable (Pin 2-Rx, Pin 3-Tx, Pin 5-GND) connected to COM3 on the gateway workstation.
Q: How does AILS handle abnormal urine dipstick findings?
Any positive finding (e.g. Protein ++, Blood +, or Nitrite Positive) triggers automated reflex microscopic examination and pathologist review.
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Connect Your Roche Cobas u411 / Cobas 6500 to AILS in Under 15 Minutes
Our specialized biomedical engineering team provides complete plug-and-play drivers, cable diagrams, and bi-directional test verification for the Roche Cobas u411 / Cobas 6500.