Ring Communications DXC910 - Manual (Page 4)

4 DXC910 OPERATIONS MANUAL 2007/05/17
INTRODUCTION
A standard RM5000 central is used as a basis for the DXC910 Crisis Alert system.
Some minor modifications are carried out on the NFE1643 board. A new pcb (DXC910) is replacing the
old processor on the NFE1643 board. New software has been written for the new processor (68HC11)
that includes standard intercom features, a new personal queue (replacement for CAS) and programming
from a PC computer.
The DXC910 board includes a two wire data network (RS485) for connection of external annunciators
(DAD104), log-printer interface (DNA100), PC interface (DNA100) video switcher interface (DNA200).
This data network has capacity of eight devices. All devices are connected in parallel on the data pair (star
or loop). Each device must be given a different network address (dip switch programming). The DXC910
sets its address on U49 (on NFE1643), the DAD104 has the switches (S1) located on the back, the
DNA100 has the switches (SW2) located on the front panel. A typical system may use address:
08 for the DXC910
09 for the first DAD104
0A for the second DAD104
0B for the DNA100 at the PC
0C for the DNA200
0D for the DNA100 with a log-printer
(see the Network manual for setting network address).
The number of call digits are set by SW1 on the DXC910 card and the Battery RAM must be reset after
changing number of call digits. All other programming is done from the PC connected to the DNA100. The
PC can run Terminal for Windows 3.11, Hyperterm for Windows 95/98, Procomm + or any other emula-
tion software with VT100 emulation.
When the PC is first connected to the DNA100 the Status Display screen will be displayed. Press CTR X
on the PC to go to the main menu and select 6 - COMMUNICATIONS LINK.
You will now be asked for a network address. Enter 08 to program the DXC910 or 0C to program the
DNA200. The network will now set up a transparant link to the device that you want to program. See the
apropriate device manual for programming details. Use the SNA command to associate an intercom station
with a DAD104, printer or video monitor. Programming commands may be put in a text file in the PC and
then uploaded to do the programming ( > is the pace character).
The following manuals are available:
DXC910, Crisis Alert Interface for RM5000 (This manual)
DNA100, Digital Network Interface
DAD104, Digital Annunciator Dsplay
NETWORK, Specification for the two wire Network