Keri Systems EP1502 - Manual (Page 3)

Mercury Security Corporation © 2011 EP1502 DOC 10107-0031 REV 1.05 Page 3
DIP Switches:
The four switches on S1 DIP switch configure the operating mode of the EP1502 processor.
DIP switches are read on power-up except where noted. Pressing switch S2 causes the EP1502 to reset.
1 2 3 4 Definitions
OFF OFF X OFF Normal operating mode.
ON X X X
After initialization, enable default User Name (admin) and Password
(password). The switch is read on the fly, no need to re-boot.
OFF ON X OFF Use factory default communication parameters.
ON ON X OFF Use OEM default communication parameters. Contact system
manufacture for details. See Bulk Erase below.
X X ON X Disable TLS secure link. Switch is read only when logging on.
ON ON OFF OFF Bulk Erase prompt mode at power up. See Bulk Erase below.
All other switch settings for unassigned and are reserved for future use. X = don’t care.
In the factory or OEM default modes, downloaded configuration/database is not saved to flash memory.
Factory Default Communication Parameters:
Network: static IP address: 192.168.0.251
Communication address: 0
Primary Host port: IP server, no encryption, port 3001.
Alternate Host Port 1: RS-232, 38,400 baud, no encryption, no flow control.
Bulk Erase Configuration Memory:
The bulk erase function can be used for the following purposes:
 To erase all configuration and cardholder database data.
 To recover from a corrupted database in the unlikely event the database gets corrupted and causes
the EP1502 to continuously reboot.
When power is applied with S1 switches set to 1 & 2 ON and 3 & 4 OFF, there is a 10-second window
that if switch 1 or 2 is changed to the OFF position memory is erased. The LEDs flash the following
pattern when in the reset window: LED 1 & 2 and LED 3 & 4 flash alternately at .5 second rate. When
erasing memory, LED 2 flashes at a 2 second rate; DO NOT CYCLE POWER. It takes less than 60
seconds to erase the memory. LEDs 1 and 4 flash for 10 seconds after the memory has been erased,
then the EP1502 will re-boot.
4. Input Power, Cabinet Tamper and UPS Fault Input Wiring:
The EP1502 requires 12-24 Vdc power. Locate power source as
close to the unit as possible. Connect power with minimum of 18
AWG wire. Connect the GND signal to earth ground in ONE
LOCATION within the system! Multiple earth ground connections
may cause ground loop problems and is not advised.
Observe POLARITY on 12-24 Vdc input!
There are two dedicated inputs for cabinet tamper and UPS fault
monitoring. Normal (safe) condition is a closed contact. If these
inputs are not used, install a jumper wire.
5. Communication Wiring:
The EP1502 controller communicates to the host via the on-board 10-BaseT/100Base-TX Ethernet
interface (port 0) and/or RS-232 interface (port 1). RS-232 interface is for direct one to one connection to
a host computer port or via modem, 25 feet maximum.
The serial I/O device communication port (TB3) is a 2-wire RS-485 interface which can be used to
connect additional I/O panels. The interface allows multi-drop communication on a single bus of up to
4,000 feet (1,219 m). Use twisted pairs (minimum 24 AWG) with an overall shield for communication.
12 TO 24Vdc
GND
VIN
+
-
CABINET
TAMPER
POWER
FAULT
TB1
TMP
GND
FLT
GND