DX4020,
B420 models,
ITS-DX4020-G
Figure 5.6: Keypad Connection (supervised, Class B, Style 4, 500 mA maximum)
Figure 5.7: Backup Batteries
1 Class B, Style Y supervised:
2 Class A, Style Z BAT Battery
3 Backup batteries BK black
EOL End of line RD red
i
Notice!
Unswitched unsupervised Auxiliary Power: 24 V, 1.0 A maximum (unfiltered).
32 en | Connection Fire Alarm Control Panels
2012.08 | 04 | F01U008458 Installation and Operation Manual Bosch Security System, Inc.