
Model 4821/4820 Control/Communicator Installation Manual
3-2 150963
Table 3-1: Model 4421 Terminal Description
Name
Wire
Color
Terminal Description Electrical Rating
1 S- Expansion Bus (-) 0 VDC (circuit ground)
2 S+ Expansion Bus (+) 12 VDC, 1 Amp max.
3 A Expansion Bus (data) 5 VDC
4 B Expansion Bus (data) 5 VDC
5 +PZT PZT power output 4 VDC, 10 mA
6 LED PWR Brown 4205 LED output 8.3 VDC, 10 mA
7 COL1 Red 4205 column 1 output
8 COL0 Orange 4205 column 0 output
9 KEY2 Yellow 4205 row 4 input
10 KEY1 Green 4205 row 1 input
11 KEY0 Blue 4205 row 0 input
12 GROUND Black &
Shield
Circuit Ground
13
+READER
Red Card reader power output 5 VDC, 75 mA
14 DATA 1s White Card reader data 1’s input
15 DATA 0s Green Card reader data 0’s input
16 CR LED Brown Card reader LED output 3.75 VDC, 25 mA
17 N.O. 1 Relay Contact (Normally Open) #1 2.5 Amps max. @ 24 VDC
18 COMN 1 Relay Contact (Common) #1
19 N.C. 1 Relay Contact (Normally Closed) #1
20 1 Zone Input 1 14 VDC, 1.5 mA
21 C+ Zone power 12 VDC, 3.0 mA
22 2 Zone Input 2 14 VDC, 1.5 mA
23 N.O. 2 Relay Contact (Normally Open) #2 2.5 Amps max. @ 24 VDC
24 COMN 2 Relay Contact (Common) #2
Komentáře k této Příručce