27338J DS7488 Installation Instructions.PMD

DS7488 Octal Relay Module
Installation Instructions
1.0 Description
The DS7488 is an Octal Relay Module that provides eight Form “C”
relay outputs for the DS7400 Series Control/Communicators and
DS9400 AddressiFire 255 Series Fire Alarm Control Panels
(FACP).
It connects to the panels via the options bus. The outputs are fully
programmable and can be activated by several system events.
Each output operates individually of the other seven outputs for
complete flexibility.
2.0 Specifications
• Control Panel Requirements: The DS7488 is designed to
work with the following control panels:
• A DS7400, DS7400X, DS7400Xi, DS7400Xi Rev 3 or
DS7400Xi Rev 4. The control panel ROM version must be
1.03 or higher.
• All versions of the DS9400 AddressiFire 255 Series Fire
Alarm Control Communicator.
• Current Draw:
• 10 mA + 40 mA for each energized relay when connected
to a DS7400Xi.
• When connected to a DS9400 AddressiFire 255 Series
FACP, the DS7488 draws 8 mA + 30 mA for each energized
relay (the module operates on 12 V option bus power
which is derived from the 24 V battery).
• Contacts: Rated 5.0 A @ 28 VDC (maximum for resistive
loads).
3.0 Installation
3.1 DS7400Xi Installation
1) The DS7488 should be mounted within the DS7400Xi
enclosure. Install the panel enclosure as described in its
Reference Guide.
2) Disconnect power from the panel before installing the
DS7488. This can be done by unplugging the transformer or
turning off the AC supply circuit and removing the red battery
lead.
3) Mount the DS7488 in the enclosure using the supplied screws
(2) and mounting clips (2) (see Figure 1).
Non-inherently power-limited wiring must be routed
through a separate enclosure knockout and tied away
from other power-limited wiring.
IMPORTANT
Flip-up view to
show retainer tabs
DS7488
Mounting Location
DS7400Xi PCB
Side View of Enclosure
Lip
DS7488
Mounting Clip
for DS7488
DS7488
Mounting Clips
Retainer Tabs
DS7400Xi Control Board
Mounting Location
DS7400Xi Enclosure
Mounting Clip
for DS7400Xi
Enclosure
Brackets
Route DS7488 field
wiring through side
enclosure knockout
DS7400Xi
Mounting Clips
Figure 1: DS7488 - DS7400Xi Installation
If it is necessary to mount the DS7488 in another area of
the enclosure and the mounting requires the use of the
top two mounting holes on the DS7488, be sure to use a
IMPORTANT
nylon (nonmetallic) washer between the screw head
and the circuit board. Failure to insulate the screw from
the circuit board will cause ground faults. See Figure 1.
The DS7488 is wired to the DS7400Xi’s option bus. See Figure 2.
Red
Black
Green
Yellow
DS7400Xi
Option Bus
DS7488
Option Bus
Figure 2: DS7488 - DS7400Xi Connections

3.2 DS9400 Installation
1) Before installing the DS7488, disconnect power from the
DS9400 by turning off the AC supply circuit and removing the
red battery lead.
2) Remove the two optional transformer studs from the enclosure
using either pliers or a hammer to rock them loose. Push the
studs back through the enclosure. If the enclosure is already
mounted, pull the studs forward through the back of the
enclosure instead of pushing them back. See Figure 3 for
details.
3) Place mounting clips in the enclosure as shown in Figure 3.
4) Insert the upper length of the DS7488 board underneath the
lips of the lower mounting clips holding the DS9400 board in
place. See Figure 3.
5) Fasten screws through the lower mounting holes on the
DS7488 and mounting clips from Step 1. See Figure 3.
DS9400 Control Board
Mounting Location
4.0 Wiring
DS9400 Option Bus
DS7488
Either Bus A or Bus B may be used.
Consult the D9400 Installation Guide
for additional information.
Figure 4: DS7488 - DS9400 Connections
There are three terminals for each of the eight relays: Normally
Open (NO), Common (C) and Normally Closed (NC).
To wire the contacts, see Figure 5.
NO
C NC NO
C
NC NO C
NC NO
C
NC NO C
NC NO
C NC NO
C NC NO
C NC
1
2
3
4
5
6
7
8
Use pliers (or a hammer)
to remove these two
optional transformer studs.
Figure 5: Wiring the DS7488 Contacts
5.0 Selecting the Option Address
DS7488
Mounting
Location
DS7488
Mounting Clips
Route DS7488 field
wiring through side
enclosure knockout.
The DS7488 must be selected as an option address 1-15. Use the
Option Address Pins to select an option address with the jumper
plugs provided (see Figure 6).
1 2 4 8 1 2 4 8
1 9
2
3
10
11
Side View of Enclosure
DS9400 PCB
Lip
DS7488
Mounting Clip
for DS7488
Mounting Clip
for DS9400
Chassis
Brackets
IMPORTANT
4
5
6
7
8
12
13
14
15
Address Numbers
Figure 6: DS7488 Option Addresses
Each optional device connected to the options bus must
have a different address.
Figure 3: DS7488 - DS9400 Installation
The DS7488 is wired to the DS9400’s option bus. See Figure 4.
IMPORTANT
Beginning with DS7400Xi Version 3.0 firmware,
Addresses 1-10 may be used by the DS7488 even if
there are keypads already installed on the keypad bus
using those addresses. Addresses 11-15 may not be
used by the DS7488 if keypads are installed at those
addresses.
6.0 Programming the DS7488
The DS7488 must be programmed through the panel that controls
it. See your panel’s Reference Guide for output programming
information.
© 2004 Bosch Security Systems
130 Perinton Parkway, Fairport, New York, USA 14450-9199
Customer Service: (800) 289-0096; Technical Support: (888) 886-6189
02/04
DS7488 Installation Instructions
P/N:27338J Page 2