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faq:pin_assignment [2014/12/02 10:58] – [NB3710 PIN Assignment] hessfaq:pin_assignment [2026/10/20 12:34] (current) – removed - external edit (Unknown date) 127.0.0.1
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-====== NB3710 Extension Ports ====== 
-The NB3710 has an M12 extension connector with 8 pins. The 8 pins are split into two logical ports: Pins 1 to 4 represent Extension Port 1 (EP1) and pin 5 to 8 represent Extension Port 2 (EP2). In common, EP1 host the serial line of the router, which is a 3-wire RS-232. 
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-Some NB3700 variants use the Digital I/O connector as extension connector. The same pin assignment applies for these variants. 
-===== NB3710 PIN Assignment ===== 
-^Pin^Port^Base^Audio (A)^CAN (C)^IBIS (I)^RS-485 (Sa)^2nd RS-232 (S)^ 
-| 1 | EP1 | RS-232 GND | RS-232 GND | RS-232 GND | RS-232 GND | RS-232 GND | RS-232 GND | 
-| 2 | EP1 | RS-232 TxD | RS-232 TxD | RS-232 TxD | RS-232 TxD | RS-232 TxD | RS-232 TxD | 
-| 3 | EP1 | RS-232 RxD | RS-232 RxD | RS-232 RxD | RS-232 RxD | RS-232 RxD | RS-232 TxD | 
-| 4 | EP1 | - | - | - | - | - | - | 
-| 5 | EP2 | - | Input Left Ch. +     | GND | Call GND (Aufrufbus) | RS485 GND | 2nd RS-232 GND |  
-| 6 | EP2 | - | Input Left Ch. -      | L | Call Signal  | RS485 TxD-/RxD- (A) | 2nd RS-232 TxD | 
-| 7 | EP2 | - | Output Left Ch. +  | H | Reply GND (Antwortbus) | RS485 TxD+/RxD+ (B) | 2nd RS-232 RxD |  
-| 8 | EP2 | - | Output Left Ch. -   | - | Reply Signal | - | - |  
-===== M12 Extension Connector ===== 
-{{:pictures:m12-dio.png?nolink&200|M12 Extension Connector}}