Console terminal: Difference between revisions
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== Connections == | == Connections == | ||
On the ND-100, the console terminal connects through the CPU/MMS port A. The pinout is in many ways similar to the 4- and 8-terminal interface port, but with the difference that only pin Ac7-Ac12 goes to DB-25 pin 2-7, while Aa7-Aa12 goes to DB-25 pin 15-20. This would be the same as just crimping on a female DB-25 connector on the appropriate part of the flat-cable. Like the 4- and 8-terminal modules, a powered current-loop interface is also provided on DB-25 pins 15-16 (Rx) and 17-18 (Tx) in this case. | |||
While the [[3002]] CPU only contains a current-loop interface, driven by a 24V source, later systems such as the [[3033]] and the [[3202]] CPU modules provide both current-loop and RS-232 compatible signals. This is done in a simple way, by driving the current-loop from a 12V source. This enables these cards to repurpose the same signal for both the RS-232 TxD and current-loop Tx- pins. | |||
== See also == | == See also == | ||
Latest revision as of 19:28, 13 April 2026
- Console terminal
- Terminal 1, connected to the CPU in the computer. Communication and fault-finding are usually carried out on the console terminal.
Connections
On the ND-100, the console terminal connects through the CPU/MMS port A. The pinout is in many ways similar to the 4- and 8-terminal interface port, but with the difference that only pin Ac7-Ac12 goes to DB-25 pin 2-7, while Aa7-Aa12 goes to DB-25 pin 15-20. This would be the same as just crimping on a female DB-25 connector on the appropriate part of the flat-cable. Like the 4- and 8-terminal modules, a powered current-loop interface is also provided on DB-25 pins 15-16 (Rx) and 17-18 (Tx) in this case.
While the 3002 CPU only contains a current-loop interface, driven by a 24V source, later systems such as the 3033 and the 3202 CPU modules provide both current-loop and RS-232 compatible signals. This is done in a simple way, by driving the current-loop from a 12V source. This enables these cards to repurpose the same signal for both the RS-232 TxD and current-loop Tx- pins.
See also
Reference
Norsk Data Document ND–30.041.1 EN ND-100 SATELLITE OPERATOR GUIDE , from Terminology