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32206C 3/97
D9210B Operation & Installation Manual
© 1997 Radionics
Page 15
Step 11 Connecting Power and SDI, Terminals 1, 5, 6, 7, and 9
CAUTION: Do not connect 24 VDC or non-isolated [from the strike] 12/24 VAC
of the D9210B.
Reference Figure 5 for the following connections.
Terminal 1, Pwr +12 VDC IN. The red wire provides power to the D9210B, 12
VDC readers and buzzers.
Terminal 5, Common. The black conductor provides electrical common
between the D9210B and the power source.
Technical Tip: IMPORTANT! Always ensure a common exist from the D9210B to
the panel so the power supply and panel have the same ground reference. Use
any common terminal on the D9210B, 5, 9 and 12 for connections.
Terminal 6, SDI A PANEL DATA (INPUT). The yellow conductor from the panel
connected to this terminal. This is where data from the panel is received by the
D9210B.
Terminal 7, SDI B PANEL DATA IN (RETURN). The green conductor from the
panel is connected to this terminal. This is where the data from the D9210B is
returned back to the panel.
Terminal 3, LCKCOM. For 24VDC strikes provide the input power here from the
power supply. For 12 VDC strikes, provide the input power here from the power
supply.
1
PWR +
7
SDIB
6
SDIA
5
COM
8
T +
10
ZN +
9
ZNCOM
2
LCKN/C
3
LCKCOM
4
LCKN/O
TECHNICAL TIP: It is very important to include your strike current. Radionics recommends you use an
auxiliary power supply to isolate door controls and ensure the integrity of the system.
Figure 5. Power Supply and SDI Connections
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