11
12
Qualified Ethernet Switches
Q-Sys uses layer 3 (DSCP) QoS. This type of QoS is deployed differently on different networks and therefore requires user intervention to set up
properly. Because of this complexity, unmanaged switches are not acceptable for Q-Sys. For more details about network setup, refer to the Help File in
Q-Sys Designer. For more details about the following switches, refer to the manufacturers’ website.
The following switches have been tested and qualify for use with a Q-Sys™ network.
Q-Sys™ GPIO Signal Specifications
Pin Assignments
DB15 Pin
Signal Name
Signal Type
Description
1
RNO
Relay Contact
Relay - normally open
2
RNC
Relay Contact
Relay - normally closed
3
GPIO1
Normal Current
GPIO pin
4
GPIO3
Normal Current
GPIO pin
5
POWER
Power
+12 V DC
6
GPIO5
High Current
GPIO pin - high current capable
7
GPIO7
High Current
GPIO pin - high current capable
8
GND
Ground
Ground
9
RC
Relay Contact
Relay - common
10
GND
Ground
Ground
11
GPIO2
Normal Current
GPIO pin
12
GPIO4
Normal Current
GPIO pin
13
POWER
Power
+12 V DC
14
GPIO6
High Current
GPIO pin - high current capable
15
GPIO8
High Current
GPIO pin - high current capable
Linksys
®
SLM2008
•
SLM2024
•
SRW2008
•
SRW2008P/MP
•
SRW2024
•
HP
®
ProCurve™
3500 Series
•
3500ly-24G-PWR
•
3500ly-48G-PWR
•
Cisco
®
Catalyst 3560E Series
•
Catalyst 3560E-24TD
•
Catalyst 3560E-48TD
•
Catalyst 3560E-12D
•
Specifications, Relay Pins
Maximum Voltage, relative to Ground: 30 V
•
Maximum Current through Relay: 1 Amp
•
Specifications, Power Pins
Output Voltage: 11V min, 13V max
•
Maximum Output Current: 400 mA
•
Specifications, Normal Current Pins
Maximum Input Range: 0 V to 32 V
•
Analog Input Range: 0 V to 24 V
•
Digital Input, Low: 0.8 V maximum
•
Digital Input, High: 2.0 V minimum
•
Digital Output, Low: 0.4 V maximum
•
Digital Input, High: 2.4 V minimum,
•
3.3 V maximum
Specifications, High Current Pins
Maximum Input Range: 0 V to 32 V
•
Analog Input Range: 0 V to 24 V
•
Digital Input, Low: 0.8 V maximum
•
Digital Input, High: 2.0 V minimum
•
Digital Output, Low: 0.4 V maximum
•
Digital Input, High: 2.4 V minimum,
•
3.3 V maximum
Digital Output Impedance: 1k ohm
•
High Current Output, Low: 0.4 V maximum
•
High Current Output, High: 11 V minimum,
•
13 V maximum
High Current Output, sink or source: 280 mA
•
Q-Sys™ I/O Card Install/Uninstall Procedure
Card installation should only be done by a trained and qualified technician.
Tools needed:
Phillips screwdriver | ESD wrist strap (ground strap)
An ESD wrist strap must be worn throughout the install/uninstall procedure. The
1.
end of the wrist strap should be connected to an unpainted surface on the product
chassis such as the ground stud.
Disconnect the AC mains power cord.
2.
Remove the sheet metal screws securing the lid to the Q-Sys I/O Frame chassis.
3.
Remove the lid by lifting it approximately 1" at the rear of the chassis and sliding it
back from the front.
Locate the Q-Sys I/O Card to be replaced. Remove the ribbon cable from the card
4.
by gently lifting up on the plastic ribbon cable locking tab on the connector at the
edge of the card. Ensure that the cable edge does not get damaged.
(Figure 1)
Remove the two screws securing the Q-Sys I/O Card mounting bracket to the rear
5.
of the chassis. Remove the bracket.
(Figure 2)
Note: in order to remove an I/O
Card in position C or D, first uninstall the appropriate card above in position A or B.
For Q-Sys I/O Cards in positions A or B, remove the four Phillips head screws secur-
6.
ing the card and remove the card. For cards in positions C or D, remove the card
above, then remove the four hex standoffs and remove the card to be replaced.
Install the new Q-Sys I/O Card by reversing steps 4 through 6. Be sure to align and
7.
secure the rear panel mounting bracket before the hex standoffs or card-securing
screws are completely tightened.
Reattach the ribbon cable to the Q-Sys I/O Card. Make sure that the edge of the
8.
ribbon cable is properly aligned with the connector mating surface. The blue band
on the ribbon cable should be facing upward. Engage the ribbon cable locking tab
on the connector by gently pressing down on the locking tab.
If replacing a blank Q-Sys I/O Card with an audio I/O Card, the ribbon cable in step
9.
8 must also be connected to the Q-Sys I/O Frame main circuit board. To do this,
locate the connector corresponding to the appropriate I/O Card position (connec-
tor labels on the main board match the I/O Card positions printed on the product
rear panel). Insert the ribbon cable into the main board connector by first lifting the
plastic ribbon cable locking tab on the connector. Then align the ribbon cable with
the connector contacts and insert the edge of the ribbon cable into the connector
slot.
(Figure 3)
The blue band on the ribbon cable should face the system power
supply. Make sure the ribbon cable locking tab on the connector is engaged by
holding the ribbon cable in place and gently pressing down on both sides of the
locking tab simultaneously until the tab locks in place.
(Figure 4)
Replace the Q-Sys I/O Frame lid and secure the sheet metal screws.
10.
Note:
The maximum current sourced by one GPIO connector
(including both High Current and Power Pins) is 400 mA.
– Figure 1 –
– Figure 2 –
– Figure 3 –
– Figure 4 –
