Sierra 200 owner manual Link Map

Link Map

C200 (u) Set link map

The control system performs operations on port numbers 0…7. When we refer to these ports they are “logical ports” which are normally mapped one- for-one to the physical ports. This means that the RCB assigned a hardware port number of 0 will map to logical port number 0.

With the link map you can assign any logical port to any physical port. In normal operation, all logical ports are mapped to their corresponding physical port. One example of why you may want to change the link map is the case where you have two physical repeaters on a single control system. One as a primary radio and one as a backup. Both can be plugged in at all times. Lets say you have many custom macros written to operate on logical port 0 which is assigned to physical port 0 and therefore the primary repeater. If the primary repeater should fail, you could easily remap the backup repeater on physical port 1 to behave as logical port 0. In this case, all commands that would normally act upon the primary repeater is now going to act upon the backup repeater with no other hardware or software configuration changes.

This command sets the link map which maps the logical port number to the physical port number.

Syntax is C200 p0 p1 p2 … D

p0 is the physical port number (0..7) that will be recognized as port 0 p1 is the physical port number recognized as port 1, etc.

Any ports not listed will be assigned in increasing order following the last one specified. If there is a local repeater port, the first one should be logical and physical port 0 - not absolutely required, some of the commands which treat the lower numbered physical port which is a local radio as the primary repeater port will may not send telemetry to the correct port if this is not done.

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