14
Specifications Section 1-4
CJ-series Ethernet Unit
Ambient operating temperature 0 to 55°C
Ambient humidity 10% to 90% (with no condensation)
Atmosphere Must be free of corrosive gas.
Ambient storage temperature −20 to 75°C
Weight 200 g max.
Dimensions 35 × 130 × 101 m m (W × H × D)
Item Specifications
Item Specifications
Model number CJ1W-ETN21
Type 100Base-TX (Can be used as 10Base-T)
Applicable PLCs CJ-series PLCs
Unit classification CJ-series CPU Bus Unit
Mounting location CPU R ack or Expansion Rack
Number of Units that can be
mounted 4 max. (including Expansion Racks)
Tran sf er
specifica-
tions
Media access
method CSMA/CD
Modulation method Baseband
Transmission paths Star form
Baud rate 100 Mbit/s (100Base-TX) 10 Mbit/s (10Base-TX)
Transmission media Unshielded twisted-pair (UDP) cable
Categories: 5, 5e
Shielded twisted-pair (STP) cable
Categories: 100 Ω at 5, 5e
Unshielded twisted-pair (UDP) cable
Categories: 3, 4, 5, 5e
Shielded twisted-pair (STP) cable
Categories: 100 Ω at 3, 4, 5, 5e
Transmission dis-
tance 100 m (distance between hub and node)
Number of cascade
connections 24
Current consumption (Unit) 370 mA max. at 5 V DC
Vibration resistance Conforms to JIS 0040.
10 to 57Hz: 0.075-mm amplitude, 57 to 150 Hz: acceleration 9.8 m/s2 in X, Y, and Z
directions for 80 minutes each (sweep time: 8 minute × 10 sweeps = 80 minutes)
Shock resistance Conforms to JIS 0041.
147m/s2, 3 times each in X, Y, and Z directions
Ambient operating temperature 0 to 55°C
Ambient humidity 10% to 90% (with no condensation)
Atmosphere Must be free of corrosive gas.
Ambient storage temperature −20 to 75°C
Weight 100 g max.
Dimensions 31 × 90 × 65 mm (W × H × D)