Siemens MFI, Technical Manual, Page: 12 / 18

Connections and LEDs
OSDP Reader wiring
6
12 | 18
Restricted
A6V12068740
2020-09-07
6.2 OSDP Reader wiring
Reader connection via OSDP with or without encryption. The readers should be
connected to the appropriate terminal blocks (A, B, -, +) of the READER port
Mapping from MFI board to the Reader ports.
Up to 8 OSDP readers can be daisy chained (from one reader to another) on the
same connection.
Labels on
MFI board
A B - +
Labels on the
Reader ports
(HID,
Vanderbilt
Readers)
GPIO 1
A
GPIO 2
B
GND
-
+VDC
+
6.3 Wiring of monitored input
1. Connect the shielding to the housing earth.
2. Insulate the shielding at the input (e.g. door contact), do not connect it.
3. DC: door contact
4. R: terminating resistors each 22 kOhm
6.4 LEDs
LED function Name on the board Color of LED
RLY 1
Status LEDs
Indicates
activated/deactivated
H715 White
RLY 2 H716 White
RLY 3 H717 White
RLY 4 H718 White
AUX OUT 1 H719 White
AUX OUT 2 H720 White
AUX OUT 3 H721 White
AUX OUT 4 H722 White
INPUT status LEDs H700 to H707 Red (During tamper)
Green (Normal)
Orange (Alarm)