
The STB NIB 1010 Basic NIM Module
The 
| Pin | Signal (in) | Signal (out) | 
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| 1 | DO1 | DO2 | 
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| 2 | DI1 | DI2 | 
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| 3 | GND1 | GND | 
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| 4 | unused | unused | 
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| 5 | unused | +5 V | 
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| 6 | /DO1 | /DO2 | 
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| 7 | /DI1 | /DI2 | 
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| 8 | unused | unused | 
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| 9 | unused | RBST (see note below) | 
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| 
 | Note: The RBST pin detects the presence of a subsequent node on the ring. In the | 
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 | absence of this detection (or if the node has no out connector at all), the network | 
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 | ring is closed. | 
| INTERBUS | 
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 | |
| The drop cable from the fieldbus to the Advantys STB INTERBUS NIM (and the one | |
| Networking | from the NIM to the next INTERBUS node) must have connectors that observe this | 
| Cable and | pin assignment scheme. INTERBUS networking cables are shielded,  | 
| Connectors | electrical cables, compliant with INTERBUS standard  | 
| 
 | be an interruption to any wire in bus cables. This allows for a future specification for | 
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 | use of reserved pins. | 
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| 890USE19600 April 2004 | 21 | 
