ZETRON 748, Technical Manual

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Operation
025-9368H 51
First we need to assign a single digit to be used for site selection for each of our sites. Since we have
four sites, we have numbered them 1 to 4. The site selection digit becomes the Short sign-on digit or
Access ANI used to access or select a particular site from any other site in the system.
Next we need to assign a block of user numbers (from the interconnect user database) for each user
group on the system. We will give each user group a block of ten user numbers. We will only be
using five in our example, but this does make keeping track of user groups in the programming a bit
easier. We will use the block of users from 50 to 59 for our example user group. We need one user
for inbound calls (Phone-to-Mobile) and four users for outbound calls (Mobile-to-Phone). User 50
will be inbound and 51 to 54 will be outbound. The advantage here is we can program all the Model
748’s the same. The site specific issue is which of one of the outbound users is disabled at each site.
The last item we need is it pick autodial numbers for our four sites. The number of autodials needed
is equal to the number of sites, regardless of the number of user groups on the system. Since we are
using the forced autodial function, pick numbers that end in one through four. We will use autodials
21 through 24 for our four sites.
How to Program It
We will now step through the programming of a Model 748 for one of the four sites in our example
system, clone it to the other three units and perform the site specific adjusts to the programming.
Before doing any programming, reset the database to factory default for all three databases (System,
Interconnect User and Repeater Panel User). This is done in the Diagnostic menu, items 2 and 3.
This is important on the first unit we will be programming as the other three will be cloned from the
first. Any unknowns in the first unit will also be in the other three.
System programming
Interconnect Gateway uses FASTNet commands to establish a Gateway call. This must be enabled
on each line used by Interconnect Gateway. This is in the Interconnect - Telco Specific menu.
Autodials must be programmed for each of the four sites. Autodial 21 holds the phone number for
the Model 748 at Site-1, Autodial 24 holds the phone number for Site-4. If it is always a toll call or
always a local call from any one site to any other, then phone number strings stored in the autodials
won’t be a site specific item.
Repeater Panel programming
The only thing that needs to be programmed in the repeater panel initially is to enable the tones/code
to be used for normal dispatch by the user groups on the system.
In our example system we have D026 as the sub-audible code used by our user group. This is User
53 in the Repeater Panel User Database. We need to enable that code.
Interconnect User programming
Several items and multiple users need to be programmed in the Interconnect user database. On some
items we can use the block programming functions to help speed the process along.
First item, since we are using short sign-on, you will want to disable User 1, who defaults to short sign-on with 67.0Hz
sub-audible.