UNITRONIC® BUS LD
For bus systems such as Modbus, SUCOnet, Modulink, VariNet. Flame-retardant, UL approval, colour code according to DIN 47100. Temperature range from -40°C to +80°C
LD is a LAPP abbreviation for long distance
Benefits
- Suitable for multiple bus systems based on RS485 / RS422
Application range
- For fixed installation
Maximum electromagnetic screening - Bus cables for bus systems such as Modbus, SUCOnet P, Modulink P, VariNet-P)
- Dry or damp rooms
Product features
- The stated bit rates result in the following cable lengths (maximum) for a bus segment:
- 9.6-93.75 kbit/s = 1200m
- 187.5 kBit/s = max. 1000 m
- 500 kbit/s = max. 400 m
- Flame-retardant according to IEC 60332-1-2
Norm references / approvals
- UL version with certification: UL/CSA type CMX in accordance with UL 444 and CSA C22.2 no. 214-02
Design
- 7-wire strand, bare, colour-coded according to DIN 47100
- Copper braiding
- PVC sheath
- Colour: violet (RAL 4001)
- UNITRONIC® BUS LD A like UNITRONIC® BUS LD, but with UL/CSA certification
Classification
- ETIM 5.0 Class-ID: EC000830
- ETIM 5.0 Class-Description: Data cable
Operating capacitance
- Flexible use: 10 x outer diameter
Peak operating voltage
- (not for power applications)
250 V 
Conductor resistance
- (loop): max. 186 ohm/km
Minimum bending radius
- Fixed installation: 8 x outer diameter
Test voltage
- Core/Core: 1500 V eff.
Characteristic impedance
- 100 – 120 ohm
Temperature range
- Fixed installation: -40°C to +80°C
- Flexing: -5°C to +70°C
| Article number | Article designation | Number of pairs and mm² per conductor |
Outer diameter (mm) | Copper index (kg/km) | Weight (kg/km) |
| for fixed installation | |||||
| 2170203 | UNITRONIC® BUS LD | 1 x 2 x 0,22 | 5.7 | 18 | 37 |
| 2170204 | UNITRONIC® BUS LD | 2 x 2 x 0,22 | 7. 1 | 28 | 45 |
| 2170205 | UNITRONIC® BUS LD | 3 x 2 x 0,22 | 7.2 | 37 | 72 |
| For fixed installation – UL/CSA CMX approval | |||||
| 2170803 | UNITRONIC® BUS LD A | 1 x 2 x 0,22 | 5.7 | 18 | 38 |
