Specifications

IM166-107 System Programming
Video Display Terminal Programming Procedure - continued
Remote Programming Configuration
You can program the digital telephone system
remotely using the following equipment:
0 VDT or a PC and appropriate software program,
0 Pair of data modems.
The data modems must be: “Hayes-compatible”,
capable of 300-, 1200-, 2400-, or 9600-baud data
speeds, and have auto-answer capability. Be sure to
vetify the auto-answer capability before purchasing the
units. You are assured of best results if you employ
modems of the same make and model at both the
installation site and the remote programming site.
Installation
The equipment connections at the customer location
are as illustrated on page 4-61. Connect the
equipment for remote programming as illustrated
therein and discussed below.
0
0
0
0
Determine the signal needs of the modem from the
uier’s manual for it. (The digital telephone system
only requires TD, RD, and SG but the modems may
require more signals).
Wire the proper connector (to match the data jack)
on one end of a length of multiline cable.
Punch down the appropriate leads on the connector
block. Refer to Chapter 3 for connection details as
needed.
Connect the network jack of the data modem to an
outside telephone line. (If a line is not reserved for
remote programming, have a line switch installed
so that on site personnel can switch the outside
telephone line between the data modem and the
digital telephone system cabinet when you are
going to perform remote programming.)
Refer to the user’s manual for the modem, and
program the modem to automatically answer after
the first ring.
Iriterface the VDT or PC with the modem at the
programming site per the user’s manuals for the
equipment be used.
If you experience difficulty in establishing a
communications path between your VDT, modems,
and the digital telephone system, note the following
suggestions:
1.
2.
3.
4.
5.
Insure that you have enabled the modem
auto-answer feature.
Insure that the modems are wired correctly.
Reverse connections at pins 2 and 3 if necessary.
Check the modem wiring requirements stated in its
instruction manual. You may have to connect
more wiring than that connected at pins 2, 3, and 7.
Sometimes you must strap pin 4 to 5, or pin 6 to 7,
or pin 6 to 6 to 20 in the modem wiring. Check the
modem’s installation manual for this requirement.
Use a Breakout Box Data Tester to ;roubleshoot
the data communications lines.
Operation
To establish a communications link for programming
the system fmm a remote site, proceed as follows:
l If you have had a line switch installed at the
customer site, call someone there and ask them to
set it for modem operation.
l After the outside line is connected to the modem,
you can make the data link between the originating
and the remote modems.
You can then perform programming from your remote
site just as if the VDT or PC was connected directly to
the system.
Typical PC Operation .
The following procedure is given as a typical example
for using a PC and an XMODEM-type communications
software program to program the digital telephone
system. It is only provided for illustration and
reference purposes and describes a set-up using a
typical communications software program known as
PROCOMM (produced by Datastorm Technologies,
Inc.). Many other communications software programs
are also available that you can use for this purpose.
While individual operating procedures will vary with
different.communications software programs, the
general process is similar to this.
1. Perform turn-on and program-load procedures. If
operating through modems, take action to
establish a communications link between the PC
and the digital telephone system.
2. If you have direct connected your PC to the
digital telephone system, match the data
communications parameters of the software
Program to those now programmed at the digital
telephone system.
continued on next page. . .
4-79