Page 1
Setup Instructions
for Using the SK-MDM Modem
Best Data, Model 56SPX
with the Secura Key 28SA-Plus
Access Control Unit and/or the
SK-ACP Advanced Control Panel
Page 2
The SK-MDM Modem (Best Data Smart One 56SPX) has
been selected by Secura Key for use with 28SA-Plus
Access Control Unit and the SK-ACP at remote locations.
The SK-MDM is connected directly to the RS232 port of a
28SA-Plus or an SK-ACP.
The 28SA-Plus and SK-ACP contain the configuration data or
setup string for the SK-MDM, which allows the modem to be
configured in the field by the reader without the use of a
computer, and without setting DIP switches.
Note that the setup string stored in the 28SA-Plus and SK-ACP
is only used for modems at remote locations. If you are using
a SK-MDM at the PC location, use the setup information
provided with the modem for installation with your PC.
MODEM REAR PANEL CONNECTIONS - REMOTE SITE
Line Connect to the phone line at the remote site
(not the RJ-11 Jack on the reader).
Phone Not required.
Serial Port Connect to 28SA-Plus or SK-ACP RS232
Port (see Manuals for wiring details).
Power Connect the 9VAC plug-in transformer
supplied with the unit.
Setup Instructions for Using
the SK-MDM Modem with the Secura Key
28SA-Plus Access Control Unit and/or
SK-ACP Advanced Control Panel
Page 3
SETTING UP THE BEST DATA 56SPX MODEM
The order of these steps is critical, particularly when turning
power on to the modem and reader or SK-ACP.
1. Remove power to the 28SA-Plus or SK-ACP
2. Connect cable from reader to modem
3. Turn power to the modem on
4. Turn on power to the 28SA-Plus or SK-ACP
The modem is now set to auto answer and dumb mode. You
can now connect to reader from the PC location. Verify that the
TR, CD and AA lights are lighted (on) on the modem display.
NOTE: The default baud rate is 9600 baud. A 38,400 baud rate
is recommended. You can change the baud rate of a 28SA-Plus
using the PD-26 program deck, and the SK-ACP using SK-
NETTM or a terminal program.
REMOTE SITE MODEM CONFIGURATION with 28SA-PLUS
REMOTE SITE MODEM CONFIGURATION WITH SK-ACP
TELCO
LINE
SK-MDM
M
O
D
E
M
¿
SK-ACP
SK-ACP
SK-ACP
Up to 100
SK-ACPs
RS-232
GATEWAY
¿
RS-485 NETWORK
MODULE SK-NM485
TELCO
LINE
SK-MDM 28SA-Plus
M
O
D
E
M
Up to 128
28SA Plus Units
RS-232 GATE-
WAY
¿
¿
¿
RS-485
NETWORK
¿
¿
¿
Page 4
20447 NORDHOFF STREET CHATSWORTH, CA 91311
PHONE: (818) 882-0020 FAX: (818) 882-7052
TOLL FREE: (800) 891-0020
E-mail: mail@securakey.com
Web site: www.securakey.com
5782
SUPPORT
Contact Secura Key technical support for problems with the modem when
used with the 28SA-Plus, SK-ACP or SK-NETTM software. Contact Best
Data for general modem support issues, such as Internet access, PC
compatibility, repairs, etc. Refer to the modem as the 56SPX in all
correspondence with Best Data.
WARRANTY
The 56SPX is warranted by Best Data Products. Please register your modem
with Best Data Products, and contact Best Data regarding any warranty
issues.
SNOITCENNOCREBMUNNIP232-SR
SULP-AS82®PMOCARTNE/PCA-KS LANIMRETROCPRETNIRPMEDOMMEDOM
NOITPIRCSEDLANGIS
PCA-KS
7J
SULP-AS-82
LANIMRET
KCOLB
S52-BD
)ELAMEF(
#NIP
S9-BD
)ELAMEF(
#NIP
P52-BD
)ELAM(
#NIP
P52-BD
)ELAM(
#NIP
P9-BD
)ELAM(
#NIP
DNUORGLANGIS117&157&175
)DXR(ATADEVIECER2223C/N* 3 2
)STC(DNESOTRAELC3347**0281
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* .4LANIMRETOT2LANIMRETTCENNOC,EDOMRETNIRPDERIW-DRAHROF
.YSUB/YDAERRETNIRPRO02NIP**
ADDENDUM
CABLE PINOUT
When using the Secura Key
supplied cable, the following color
code pinout will apply.
/LENAP
REDAER
ERIW
ROLOC
52BD
1KCALB7
2ETIHW3
3DER8
4NEERG4
5EGNARO2
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