Specifications
DSX Access Systems, Inc. 10731 Rockwall Road Dallas, Texas 75238 / 888-419-8353 / 214-553-6140 / www.dsxinc.com
11/2012
Outputs 
The DSX-1022 has six Outputs. Two Outputs (output 1s) are 
the Form- C, fused at 1 Amp, relay outputs to control the locks 
for the reader controlled doors. Two Outputs (output 2s) are 
also Form-C, fused at 1Amp, relay outputs that are 
programmed and used in the same ways as all other outputs. 
All Relay Outputs have 1A fuses in series with the Common 
terminal. Two Pre-Warn Outputs of the DSX-1022 are used to 
indicate the controlled doors are being held open and about to 
go into alarm. If the door is locked, armed, and opened, the 
output pulses low starting at 1/3 of the door open too long time 
and changes to a steady low anytime the door is in alarm. 
These open collector outputs reset automatically when the 
door is closed. 
Communications 
The DSX-1022 Intelligent Controller can communicate with 
the Comm Server (Host PC) via TCP/IP, Direct serial port, and 
dial-up modem. 
TCP/IP LAN Communications
 can be utilized from the 
WinDSX Comm Server PC to a Master Controller. The 
WinDSX Software without the use of any additional Hardware 
or Software will redirect what would typically be serial port 
communications to a TCP/IP address. A DSX-LAN(M) serial 
device at the Master Controller receives the communications 
over the LAN converts it to RS-232/RS-485 for the Master 
Controller. The end result is real time communications similar 
to that of a direct serial port connection. 
Direct Connect Communications
 to the PC from the 
Master 1022 Controller is performed with the use of the MCI 
module which connects to the comm port of the PC and 
converts the RS-232 signal from the PC to RS-485. The RS-
485 communications from the MCI to the Master utilizes two 
twisted pair cable for the data and one pair for power. The RS-
485 output of the MCI will support up to 4000 feet of cable 
distance. The controller communicates with the PC at a default 
baud rate of 9600. As long as the communications signal 
arrives at the Master as RS-485 and RS-232 at the PC in an 
asynchronous, full duplex mode, operating at 9600 baud, the 
method of communication in between can be just about any 
mode of transport such as Direct Wire, T1, Lease Line, or 
Fiber Optics. 
Dial-Up Modem Communications
 from the DSX-1022 
Master Controller to the PC utilizes a DSX-Modem and DSX-
MCI module at the Controller and a DSX-Modem at the PC. 
At the DSX-1022 Master, the RS-485 Host Communications 
Port connects to a DSX-MCI module which converts the RS-
485 of the Controller to RS-232 for the Modem (the MCI is 
not required for the new DSX-Modem). The DSX-MCI and 
Modem derive power from the 12VDC output of the DSX-
1022 panel. The Controller will auto-dial to the PC all 
alarm and supervisory conditions. The controller can also be 
programmed to dial the PC when its event buffer is 80% full. 
Panel to Panel Communications 
is a true point to point, 
regenerative, RS-485, 4-wire, communications method. This 
allows the panel to panel network communications to be 
regenerated at each controller providing up to 4000 feet of 
distance between controllers over two twisted pair cable. Panel 
to Panel communications can be configured in a series loop, 
star configuration, or both. Star configurations require a DSX-
1035 Quadraplexor. 
DSX-1022 Specifications 
S i z e 
Cabinet 15.5” W x 13.5” H x 6.0”D 
DSX-1022 10.5” W x 7.5” H x 1.5” D 
Weight 
Cabinet     11.00 lb. 
DSX-1022   1.60 lb. 
Package Total  12.60 lb. 
Finish 
Black Powder Coat on Enclosure and Black Enamel on Shield 
Temperature/Humidity 
Operating 32 to 131 F / 0 to 95% relative - Storage -35 to 150 F 
Supply Voltage 
Panel Voltage 16.5 VAC 40VA – For UL 1076 use two transformers. 
Power Requirements 33 Watts (112.6 BTU) 
Panel Current Draw 540 ma 
UL Listed or CSA Certified Class II Transformer Required. 
Output Voltage 
Panel Output 12VDC 1A - Fused 
Panel Output 5VDC 1/2A - Fused 
Inputs 
EOL Supervised 8 
UL Installations require a Tamper Switch to be connected to an Input 
programmed with a 24hr Time Zone. 
Outputs 
Form C Relays (1-2) 4 fused at 1A 
Relay Ratings 5 AMP 30 VDC 
LED Outputs 6 - 3 per reader - open collector 100ma 
Pre-Alarm Outputs 2 - 1 per door - open collector 100ma 
Access Controlled Entry Points 
Card Reader or Keypad 2 Any combination of card readers, keypads, 
or card and keypad controlled entry points may be used. Over 240 
types available including FIPS/TWIC cards up to 17 digits. 
Battery Charging Output 
Trickle Charge 13.5 VDC 500ma Fused / 
Standby Time 3.3 hours under maximum load. 
For UL Installations, battery must be Powersonic PS-1270, Interstate 
PC-1270, or a SBS S-1272. For UL1076 use two batteries. 
Communication Ports 
RS-485 In (2) 1 for Master to PC, 1 From Slave 
RS-485 Out 1 To Subsequent Slaves 
DSX-1022 Master Controller requires a MCI Module for direct serial 
port communications. 
Processor 
AM186 20Mhz 
RAM Memory 
Standard 512K 
* The transaction buffer automatically adjusts to utilize any RAM not 
allocated for system parameters. 
Warranty 
Limited 2 Years 










