B&B Product Compatibility with Industrial Buss
[ back to compatibility chart ]

The model 485OP is compatible with Allen-Bradley, Data Highway, DH and DH+

With the following restrictions:

1. The model 485OP is used in a 2-wire mode.
2. The maximum cable lengths are observed between units (see table 1)
3. The ends of the lines are terminated properly (see table 1)

Table 1 Termination Link Resistor Value Communication Rate (Kbaud) >Maximum Cable Length m (ft) >150 57.6 3,048 (10,000)> 150 115 1,542 (5,000) 82 230.4 762 (2,500)

DH+ Channel 1    3-Pin Interface (recommended)		DH+ Channel 1      8-Pin Interface
Pin Number Pin Name 1 >DH+ Data Line 1 2 Shield 3 DH+ Data Line 2		Pin Number Pin Name 1 DH+ Data Line 2 2 No Connection 3 Shield 4 +24 volts 5 >No Connection 6 DH+ Data Line 1 7 +24 Volts Return 8 No Connection