Interlogix ATS125

P/N 1070341 (ML) • REV F • ISS 16APR18 19 / 66
Table 11: 12 V variants auxiliary current and battery capacity
Approval
grade
Discharge
time (h)
Charge
time (h)
Max Available Auxiliary
Current (mA)
Battery Type, Ah:*
7.2
18
26
EN 1&2
12
72
450
1300
1800
EN 3&4
60
24
—
175
290
NF&A2P-2
36
30
—
330
500
NF&A2P-3
72
30
—
110
200
VdS-B
30
24
110
450
700
VdS-C
60
24
—
175
290
* Available battery capacities depend on the housing as well.
Please refer to max. battery capacity in Table 1 on page 12.
Table 12: 24 V variants auxiliary current and battery capacity
Approval
grade
Discharge
time (h)
Charge
time (h)
Max Available Auxiliary
Current (mA)
Battery Type, Ah:*
2X 7.2
2X 18
2X 26
EN 1&2
12
72
500
1400
1800
EN 3&4
60
24
—
200
300
NF&A2P-2
36
30
100
400
600
NF&A2P-3
72
30
—
150
250
VdS-B
30
24
120
500
730
VdS-C
60
24
—
200
300
* Available battery capacities depend on the housing as well.
Please refer to max. battery capacity in Table 1 on page 12.
All Auxiliary currents mentioned in the tables above are
calculated for the 24 V auxiliary. For calculation of the
maximum load on 12 V auxiliary outputs a correction factor of
1.6 should be taken into account.
Formula: I
aux
at 12 V = I
aux
at 24 V x 1.6
Example 1:
One wants to meet Approval grade EN 1&2 with two 18 Ah
batteries. The application has a maximum load of 24 V Locks
of 800 mA. According Table 12 above it means that the max
available auxiliary current is 1400 mA at 24 V.
This means that besides the 800 mA for the 24 Locks either:
• 1400 – 800 = 600 mA is left at 24 V Aux, or
• 600 x 1.6 = 960 mA left at 12 V Aux i.e. AUX power,
Locale Comms.
Example 2:
One wants to meet Approval grade NF&A2P-2 with two 18 Ah
batteries. The application has a maximum Local Comms load
(12 V) of 200 mA. According Table 12 above it means that the
max available auxiliary current is 400 mA at 24 V.
This 200 mA at 12 V Local Comms load results in:
• 200 / 1.6 = 125 mA at 24 V, and this leaves
• 400 – 125 = 275 mA @24 V for Aux (i.e. Locks power).
Restrictions:
• Max 12 V Aux current: 1000 mA.
• Max 24 V Aux current: 1600 mA.
Maximum auxiliary current can be limited by:
• Discharge duration
• Available charge capacity for battery
• Auxiliary fuse
All data based on board without external equipment.
Cabling distance
Table 13: Cabling distance
From
To
Distance
Cable type
ATS control
panel system
databus (J10)
ATS125x/1260
system databus
(CON6 or J3)
1.5 km (total
databus length
without repeaters)
WCAT 52 or
equivalent
Reader
interface (J13
to J16)
Reader
75 m
Depends on
type of reader
Local databus
(J22)
RAS, DGP or
reader
1.5 km
WCAT 52 or
equivalent
Local
databus 1 (CO
N9)
RAS
1.5 km (total
databus length
without repeaters)
WCAT 52 or
equivalent
Local
databus 2 (CO
N10)
RAS
1.5 km (total
databus length
without repeaters)
WCAT 52 or
equivalent
External terminals specification
Table 14: ATS125x external terminals
Termi-
nal
Wire
Description
Min
Typ
Max
Unit
CON1
, 
AC transformer
connection
—
20
120
—
VAC
VA
+, −
Battery connection 12V
variant (ATS1251,
ATS1253)
13.6
13.8
7.2
14.0
25
V
Ah
Battery connection 24V
variant (ATS1252,
ATS1254)
27.4
27.6
2 x 7.2
27.8
2 x 25
V
Ah
CON2
+, −,
+, −
Auxiliary power output
13.6
13.8
14.0
2
V
A
S+,
S−
External siren output
13.6
13.8
14.0
1
V
A
CON3
+, −,
+, −
Lock power output 12V
variant (ATS1251,
ATS1253)
13.6
13.8
14.0
2
V
A
Lock power output 24V
variant (ATS1252,
ATS1254)
27.4
27.6
27.8
2
V
A
CON4,
CON5
C, NO
or NC
Contacts door relays
(each)
—
—
30
2
V
A
CON9,
CON10
+12 V
Power for local bus
13.6
13.8
14.0
2
V
A
Notes
• Maximum total current consumption for auxiliary power outputs
(++/−−) and external siren should not exceed 2 A.
• Maximum total current consumption should not exceed 3 A,
including battery load current.