D8125MUX | Operation and Installation Guide | 3.0 Installation
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Bosch Security Systems, Inc. | 9/08 | F01U034973-02 19
3.10 MX250 Photoelectric Smoke
Detectors and MXB2W Base or
D7050 Photoelectric Smoke
Detector and D7050-B6 Base
3.11 DS7460(i) Dual Input Multiplex
Module
The DS7460(i) reserves two points on the MUX bus.
Dual input multiplex points can be programmed as
Points 9 through 127 (Zonex 1) and 129 through 247
(Zonex 2) (59 per zonex, 118 modules) on
D9412GV2, D9412G, D9412, and D9112: Points 9
through 75 (33 modules) on a D7412GV2, D7412G,
D7412, and D7212; Points 9 through 40 on the
D7212GV2 and D7212G (16 modules). When
programming dual points, they occupy first an odd
point number, then an even point number. For
example, DS7460(i) Modules must be programmed to
occupy Points 9 and 10, not 10 and 11.
The MX250 and MX250TH Photoelectric Smoke
Detectors with MXB2W Base or D7050 and D7050TH
Photoelectric Smoke Detectors and D7050-B6 Base
reserve a single point on the multiplex bus. Single
input Multiplex points can be programmed as points 9
through 127 (Zonex 1) and 129 through 247 (Zonex
2) (238 smoke detectors) on a D9412GV2, D9412G,
D9124, D9412, or D9112; points 9 through 75 (67
smoke detectors) on a D7412GV2, D7412G, D7412,
and D7212; and (32 smoke detectors) points 9
through 40 on the D7212GV2 and D7212G. Other
wiring restrictions can reduce the maximum number
of photoelectric smoke detectors on the multiplex bus.
Refer to the MX250 Installation Guide (P/N: 45253)
and the D7050 Installation Instructions (P/N: 47458)
for additional information.
When using the D5060 programmer, only
program the odd or first point on the
When programming an MX250 Series or D7050
Series Photoelectric Smoke Detector and base with a
D5060 Programmer, refer to
Table 12 for information
on configuring the point type.
Table 12: MX250, MX250TH, D7050, and
D7050TH Point Type Configuration
Device Type Point
Type
Point
Response
Photoelectric Smoke
Detector and Base
4 NO
The rotary address switches must be set
to the “B” range address to work with the
D8125MUX.
module. The even or second point is
automatically added.
The DS7460i cannot be used for Point 75
on the D7412GV2, D7412G, D7412, and
D7212 or for Points 127 or 247 on the
D9412GV2, D9412G, D9412, and D9112.
Failure to observe these programming
requirements will result in intermittent
missing conditions.
In addition, both points on the DS7460i must have a
Point Index assigned to it when programming the
control panel. If one of the two points is not required
on the device, simply place the 47 kΩ end-of-line
(EOL) resistor on the point input terminals and
program the unused point with the same Point Index.
When programming the point type for the DS7460(i),
using the D5060 Programmer refer to
Table 13 for
information on configuring the point type. Tamper
conditions on multiplex points are treated as Missing
conditions by the control panel.
Table 13: DS7460(i) Point Type Configuration
Device Type Point Type Point Response
DS7460i Dual 6 Configurable
Input Multiplex
(N/O or N/C)
Module
