Thank you, I have a new customer, And they have a new site and they asked for RJ-45 and RJ-15 jacks. I have never used them. I think some one got this wrong because it is for a office set up ?
You must weigh being right and being helpful. "They" asked for them. Who is "they?" The customer themselves, or a computer person (or someone else) hired by them to get the job done?
If you ask them if they really mean RJ45 and RJ15, and they say "yes" without asking you why, I feel that it is your obligation (and also good business) to tell them that what they are asking for is not applicable to an office environment with computers and phones.
If it is a simple matter of a non-telephone civilian asking for the wrong thing, and you can easily explain the error, you will have gained some good-will and credibility.
If the on-site "expert" cops an attitude, and says, essentially "just do what we say" then go on ahead and install the RJ45's and RJ15's and charge accordingly, but not without getting a signature from the expert authorizing the installation. Then explain, in writing, the following: An RJ45 is an obsolete scheme using a keyed plug/socket arrangement wired for one telephone line on pins 4 & 5 with a programming resistor on two other pins, and was historically used for data phone service. The RJ15 is a heavy-duty weatherproof single-line jack intended to provide service for a boat at a dock.
Hopefully, you can convince them to let you install the right stuff.
In this economic climate, it's hard to be rigid in dealing with the usual morons. You know that if you don't do the install, someone else will, and they'll just install ethernet jacks and voice jacks.