
K2200 Series | Installation Guide | 5.0 Installation Details EN | 33
Bosch Security Systems | 7/03 | 17375 1.3 / 46513C
The readers are not prone to electrical interference,
however avoid routing cable close to heavy load
switching cables and equipment. If this is
unavoidable, cross the cable at right angles every 3.3
- 6.6 ft. (1 - 2 m).
Reader Connections
All Readykey readers have 4 visible terminals, +V,
VCA, SIG and -V, or a flying lead. Each reader is
connected to one of the 4 reader channel terminal
blocks on the door controller. Each reader channel
has 2 further connections, DR1 and DR2. These
provide door/cable monitoring and request to exit
inputs respectively.
Readers with Terminals
Table 15: Readers with Terminals
Connects to
Controller
Reader
Markings
Description
+V +V Supply: 18 V
LED VCA Valid code accepted,
illuminates the green LED
at the reader when a valid
key is presented.
DR2 Request to exit.
DR1 Door monitoring
SIG SIG The signal from the reader
to the controller.
GND -V Supply: 0 V
Readers with Flying Leads
Table 16: Readers with Flying Leads
Connects to
Controller
Color Signal Description
GND Black -V Power and signal
return
+18V Red +12V Unregulated 12
VDC input 9-28
VDC, 35 mA Max.
GND Yellow SNDR Sounder input,
active low. Pull to
ground to activate
sounder
SIG White SIG Signal output.
connect to door
controller reader
channel SIG
Green n/c Not used
LED Brown VCA Valid code accept,
operates LED.
Connect to door
controller reader
channel, LED.
Blue DR1 Reader tamper
connection (not
required on the
Readykey K2200
series)
Note:
If an in\out reader is being used (Readykey readers
only), the Sig from the second reader connects to the
relevant Rdr connection - Rdr1 on Channel 1, Rdr2 on
Channel 2, etc., see Figure 18,
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