APRISA XE V.24 TO Motorola Quantar

[WSF013]

Has anyone successfully connected Quantar V.24 to Aprisa XE V.24 daughter card ?
Wiring details are important here.

[Astro Spectra]

I know that the police in Australia have more than 200 Aprisa links connecting to Quantars and Motorola also use the XE radio link.

It's a good solution and quite simple to hook up, but first can you confirm that you are talking about the V.24 synchronous daughter card that goes on the Quantar Wireline card for Astro linking and not just the async RSS/CPS set-up port?

Anyway the Astro V.24 connections are as follows:

RJ45 quad V.24 card on Aprisa XE

1 RTS from Quantar
2 TX clock from Quantar
3 TX data from Quantar
4 GND
5 GND
6 RX data to Quantar
7 RX clock to Quantar
8 CTS to Quantar

There are two LED status indicators on each of the XE RJ45 connectors. The yellow LED flashes to show activity on the RX while the green LED show activity on the TX. The technical details on the XE are in the 300 page user manual in the section 'Interface Connections'.

RJ45 on Quantar

1 RX clock to Quantar
2 CD input to Quantar
3 TX clock from Quantar
4 GND
5 RX data to Quantar
6 TX data from Quantar
7 CTS to Quantar
8 RTS from Quantar

The Quantar technical details for this come from my own experience and I must have had them from a Motorola manual somewhere. You plug into port 1 on the front of the Quantar SCM (the lower RJ45). You might need to check the switch settigns on your V.24 daughter baord. The super user Mars over on the http://www.p25.ca web site posted this handy image:



Notes to first time users:

On the Quantar RSS/CPS you need to go into the Wireline Config > Astro and set Wireline Interface to the appropriate setting for your application (Hybrid or V.24 Only) and set the External Transmit Clock to disabled (unless you have a very good reason not to do this). Generally the terminal timing originates from the direction of the core of the network outwards. If the Aprisa is not connected via a T1 circuit to the core then this arrangement is arbitrary, as long as one terminal clock is internal and the other terminal clock is link timed. However, the XE is designed to allow the Quantar clock to flow from the edge to the core independent of the core/telco clock. See this example for Quantar to Astro Tac (the 1xx numbers are ITU-R V.24 circuit numbers):



Also check in the XE web set up SuperVisor that you have the quad V.24 card set for synchornous opeartion.

Open Supervisor, in the menu open Interface > Slot Summary, from the list select the slot to editing (radio button on the right 'Select'), press button <Configure slot..>, it will open next page 'Edit Interface Slot', set appropriate interface card in the 'Expected' menu and the same in 'Change Type To' menu and press <Apply> button. It should be QV24S as shown in slot D of this settings screen shot:



You can email 4RF here: [email protected]

Oh, and welcome to the Batbord.

[WSF013]

Thank you . I will give this a shot next WEEK.
Hopefully no issues.

Regards

Sunder