Radio ID for repeaters IPSC

[FMROB]

So, I was playing tech way to late last evening and on the final repair call at about 930 pm was to a repeater site of a 11 repeater ISPC system that I did not set up. The site was once working, however I believe that one of the IT guys internal might have deleted or removed internal routing tables (hence repeater not connecting to wide area system).

However I notice that the Radio ID was 22. I am scratching my head, as I thought 15 was the max, and the radio id #'s needed to go between 1-15, and that duplicate or other numbers would cause bad things to happen?

Thx, Rob

 

[foxtrotdelta]

No, according to CPS, the ID can be anything from 1 - 16776415 (for Non-Capacity Plus system), 65535 (for Capacity Plus System). You are limited to how many repeaters can be in one IPSC system before needing extra hardware. Is that where the confusion lies?

 

[radiohead1800]

I thought I remember reading somewhere that a Capacity Plus (which could be linked making it a pseudo IPSC system) was limited at 12 time slots or 6 repeaters at any one site.

I guess it's time to go and try and dig up that source.

I do agree with foxtrotdelta however, and it is my belief that the limit of physical repeaters is not related to the ID's they are assigned. They do have to be in the range he listed however.

 

[radiohead1800]

My previous comment has not been approved my the mods yet but I have found the source of my previous comment. On page 289 of the TURBO System Planner with is posted on this form.

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3.2.5 Capacity Plus Mode

Prior to R02.30.00, Capacity Plus allows up to six trunked repeaters (12 logical channels) and
twelve Data Revert repeaters (24 logical channels). For the system to operate properly, all the
repeaters must have the same software version. From software version R02.30.00 onwards, up to
eight Trunked Repeaters (16 logical channels) and twelve Data Revert Repeaters (24 logical
channels) are allowed. The Rest Channel IP address must be configured using a valid subnet IP
address where the system resides, and cannot be left as 0.0.0.0.
...
--------

I do not a similar reference in section 3.2.4 IP Site Connect Mode which starts on page 277. However as I keep reading section 3.2.5 has the reference to 15 sites which is where the max I believe you are referencing comes from.

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Section 3.2.6 Linked Capacity Plus Mode

Linked Capacity Plus allows up to 15 sites with 140 peers, in a system with a maximum of eight
Trunked Repeaters (16 logical channels) at a site. For the Data Revert Repeaters at a site, up to
eleven Revert Repeaters (22 logical channels) can be supported.However, the number of Trunked
Repeaters plus the number of Data Revert Repeaters must not exceed a total of 12. For example,
if there are eight Trunked Repeaters at a site, only up to four Data Revert Repeaters can be
supported at that site.

---------

 

[radiohead1800]

Sorry for the multiple posts. Here is confirmation of your thought that 15 sites is the max for IPSC.

<From the System Planner>

4.6.1 System Capacity

In IP Site Connect configuration, MOTOTRBO supports a maximum of 15 IP Site Connect devices,
where IP Site Connect devices include a maximum of five host PCs of RDAC-IP applications,
disabled repeaters, enabled repeaters in mode, and enabled repeaters in digital mode (both slots
in wide area mode, one slot in wide area mode and one in local mode, and both slots in local
mode).

A channel in IP Site Connect configuration supports the same number of radios supported by a
single site configuration. Note that an IP Site Connect configuration increases the coverage area
and not the call capacity of a single site configuration.

 

[no7rf]

Prior to the release of the c-Bridge in March 2011, we had 23 repeaters on our (ham) IPSC network as well as a couple of RDAC clients and this all worked rather well in the first year or two after IPSC was released (R01.04.xx I believe). While Motorola still advises (wisely) that you limit the repeaters to 15 and other IPSC clients to 5, I believe that is still a soft limit. Fewer peers is wiser rather than more as one wayward repeater connection can easily disrupt the comm on the rest of the IPSC network. Ham c-Bridge networks typically operate with 1 peer per IPSC network, letting the c-Bridge cross-connect the repeaters dynamically. This approach isolates problem repeaters from the rest of the networks.

 

[Pezking]

The radio id and the number of repeaters are two completely separate issues. The radio id can be whatever you want. It doesn't have to be 1 to 15.

 

[PSEhub]

Regardless of Peer, Master, Subscriber, etc, I recommend to have and maintain an accurate spreadsheet of all IDs in use.

Stick to range conventions for "system" units like repeaters. This will save a lot of headaches and reduce the chances of duplicates.

I understand you did not set up this system, but its probably worth creating a sheet.