Cross Technologies 3116-22-23 User manual

Instruction Manual Model 3116-22-23#
Two Channel Downconverter
April 2016, Rev. 0
MENU
EXECUTE
MODEL 3116
CROSS TECHNOLOGIES INC.
CH1 G=+25.5 REF=
CH2 G=+25.5 AUTO-E
REMOTE ALARMPOWER
DOWNCONVERTER
Data, drawings, and other material contained herein are proprietary to Cross Technologies, Inc.,
but may be reproduced or duplicated without the prior permission of Cross Technologies, Inc.
for purposes of operating the equipment. Printed in USA.
When ordering parts from Cross Technologies, Inc., be sure to include the equipment
model number, equipment serial number, and a description of the part.
CROSS TECHNOLOGIES, INC.
6170 Shiloh Road
Alpharetta, Georgia 30005
[phone]
FAX [phone]
Toll Free 888-900-5588
WEB www.crosstechnologies.com
E-MAIL [email protected]

INSTRUCTION MANUAL
MODEL 3116-22-23# Two Channel Downconverter
TABLE OF CONTENTS PAGE
Warranty 2
1.0 General 3
1.1 Equipment Description 3
1.2 Technical Characteristics 4
1.3 Monitor & Control Interface 6
2.0 Installation 9
2.1 Mechanical 9
2.2 Rear I/O’s 10
2.3 Front Panel Controls, Indicators 10
2.4 Operation 11
2.5 Menu Settings 12
3.0 Environmental Use Information 17
WARRANTY - The following warranty applies to all Cross Technologies, Inc. products.
All Cross Technologies, Inc. products are warranted against defective materials and
workmanship for a period of one year after shipment to customer. Cross Technologies,
Inc.’s obligation under this warranty is limited to repairing or, at Cross Technologies, Inc.’s
option, replacing parts, subassemblies, or entire assemblies. Cross Technologies, Inc. shall
not be liable for any special, indirect, or consequential damages. This warranty does not
cover parts or equipment which have been subject to misuse, negligence, or accident by the
customer during use. All shipping costs for warranty repairs will be prepaid by the
customer. There are not other warranties, express or implied, except as stated herein.
CROSS TECHNOLOGIES, INC.
6170 Shiloh Road
Alpharetta, Georgia 30005
[phone]
FAX [phone]
Toll Free 888-900-5588
WEB www.crosstechnologies.com
E-MAIL [email protected]
3116-22-23# Manual, Rev. 0 Page 2 04/14/16

MODEL 3116-22-23# Two Channel Downconverter
1.0 General
1.1 Equipment Description
The 3116-22-23# Two Channel Downconverter converts 2300 ± 100 MHz to 1400 ± 100 MHz (inverted) with a
3.70 GHz (common) local oscillator. The gain is +35 dB maximum and is adjustable in 0.5 ± 0.5 dB steps.
Front panel LEDs provide indication of Remote operation, PLL Alarm and DC Power. Gain and
internal/external/Auto reference frequency selection are controlled by front panel switches or remote selection
(via RS-232C/485, standard; Ethernet Optional) and are viewable on the LCD Display. Connectors are BNC
female for the RF In and RF Out and external reference input and reference output. In AUTO, the 10 MHz
reference stays in external if the external level is +3 dBm, ±3 dB. It is powered by a 100-240 ± 10% VAC
power supply, and is in a 1 3/4” X 19” X 14” rack mount chassis.
MENU
EXECUTE
MODEL 3116
CROSS TECHNOLOGIES INC.
CH1 G=+25.5 REF=
CH2 G=+25.5 AUTO-E
REMOTE ALARMPOWER
DOWNCONVERTER
FRONT PANEL - 3116-22-23#
AC
GND
J20J2 J1 J10
MONITOR
AND
CONTROL
15 23 46789
RF IN
RF OUT
J18 J3
10 MHz REF
OUTPUT
10 MHz
EXT REF
INPUT
J4
RF IN RF OUT
J5
- CH2 -- CH1 -
REAR PANEL - 3116-22-23# (Shown with optional RJ45 Ethernet Connector)
FIGURE 1.1 3116-22-23# Front and Rear Panels
SW,PLL,ATT,
VCC CONTROL
M&C
CONTROLLER
CH!
2.2-2.4
GHz IN
V
A
R
A
T
T
2.0 to 2.5
GHz BP
3.70 GHz
1.5 GHz LP CH1
1.3-1.5 GHz
OUT
EXT
10 M
10 M
TO
PLLS
10 M
MON
AUTO
3116-22-23#
Downconverter
Block Diagram
CH!2
2.2-2.4
GHz IN
CH2
1.3-1.5 GHz
OUT
CHANNEL 2 - SAME AS ABOVE
FIGURE 1.2 3116-22-23# Block Diagram
3116-22-23# Manual, Rev. 0 Page 3 04/14/16

1.2 Technical Characteristics
*10˚C to 40˚C; Specifications subject to change without notice.
Continued on page 5...
3116-22-23# Manual, Rev. 0 Page 4 04/14/16
> 50 dBC, > 55 dBC typical, Gain = +35 dB Channel-Channel Isolation
30 dB in 0.5 ±0.5 dB Ste
p
sGain, ad
j
ustment
<-50 dBm (0.5 - 1.29 and 1.51 - 2.0 GHz Out)
S
p
urious
,
Out of Band
±1.5 dB, 1400 ± 100 MHz out; ± 0.5 dB, 40 MHz BWFre
q
uenc
y
Res
p
onse
Channel Characteristics
LO Characteristics
±0.01
pp
m maximum over tem
p
erature internal reference; external reference in
p
utFre
q
uenc
y
Accurac
y
Invertin
g
Fre
q
uenc
y
Sense
< -55 dBC for two carriers at 4 MHz spacing, each at -10 dBm out Intermodulation
> 50 dBC, > 55 dBC typical, 0 dBm out; (1400 ± 100 MHz Out)
S
p
urious
,
In Band
3 dBm, ± 3 dB
10 MHz In/Out Level
3.70 GHz (Common LO to both channels)
LO Fre
q
uenc
y
> 60 dB, minimumIma
g
e Re
j
ection
+35 dB ±2 dBGain
,
Max. @ Fc
19 inch
,
Standard Chassis
,
1.75” hi
g
h X 17.0” dee
p
Size
DB9 - NO or NC Contact Closure on AlarmAlarm Connector
BNC
(
female
),
75Ωworks with 50 or 75 ohms10 MHz Connectors
Other
100-240 ±10% VAC
,
47-63 Hz
,
25 watts maximum
Power
BNC
(
female
)
, 50Ω
(
Other O
p
tions available
)
RF In, RF Out Connector
RS232C/RS485/422
,
9600 baud
(
Ethernet O
p
tional
)
Power
;
Alarm
;
Remote
Controls
,
Indicators
Remote
Direct Readout LCD;
p
ushbutton switches or remoteGain; Ext. Reference Selection
Green LED
,
Red LED
,
Yellow LED
TABLE 1.0 3116-22-23# Two Channel Downconverter Specifications*
-55 to -35 dBmIn
p
ut Level Ran
g
e15 dB maximum
g
ainNoise Fi
g
ure
,
Maximum
-25 dBmIn
p
ut 1 dB Com
p
ression
2300 ± 100 MHzFre
q
uenc
y
+10 dBmOut
p
ut 1 dB Com
p
ression -20 to 0 dBmOut
p
ut Level Ran
g
e
Out
p
ut Characteristics
In
p
ut Characteristics
1400 ± 100 MHzFre
q
uenc
y
50Ω/ 14 dBIm
p
edance / Return Loss
50Ω/ 14 dBIm
p
edance / Return Loss
-120-100-85-80-70
1MHz100kHz10kHz1kHz100 Hz
Standard dBC/
(
Hz
)
Phase Noise @ F
(
Hz
)
>

Technical Characteristics continued from page 4...
3116-22-23# Manual, Rev. 0 Page 5 04/14/16
SS - 50Ω SMA
(
RF In
),
50Ω SMA
(
RF Out
)
Connector O
p
tions
Additional Connector O
p
tions
,
See Table 2.2
,
PG 10
Available O
p
tions
0 to +50 de
g
rees C O
p
eration
W31 -
Remote M&C Ethernet O
p
tions
Ethernet with SNMP
(
and MIB
)
Interface - W18
Ethernet with Direct TCP/IP Interface
Ethernet with Web Browser Interface
- W28
- W8

1.3 Monitor and Control Interface
A) Remote Serial Interface
Protocol: RS-232C, 9600 baud rate, no parity, 8 data bits, 1 start bit, and 1 stop bit.
(RS-232C, RS/422, or RS/485 - Ethernet optional)
Connector: Rear panel, DB-9 male
J10 Pinouts (RS-232C/422/485)
Pinouts (RS-232C/422/485)
Pin Function
1 Rx-
2 Rx+ (RS-232C)
3 Tx+ (RS-232C)
4Tx-
5GND
6 Alarm Relay: Common
7 Alarm Relay: Normally Open
8 Not Used
9 Alarm Relay: Normally Closed
3116-22-23# Manual, Rev. 0 Page 6 04/14/16
Female DB-9
PC Com Port Male DB-9
2
1
3
4
5
6
7
8
9
2
1
3
4
5
6
7
8
9
M&C Cable Diagram - Cross Technologies Frequency Converters and
Frequency Sources

B) Status Requests - Table 1.1 lists the status requests for the 3116-22-23# and briefly describes them.
* PLEASE NOTE: The two character {aa}(00-31) prefix, in the table below,
should be used ONLY when RS-485, (OPTION-Q), is selected.
TABLE 1.1 3116-22-23# T
w
wo
Two Channel Dowwnconverter
Downconverter Status Requests
Command Syntax * Description
Get Channel 1 Gain {aaSG} returns {aaSGxxx} where:
• aa = unit address, range = 00 to 31, only used if interface is RS485, otherwise omit.
• G = command code
• xxx = Channel 1's Gain in 0.5 dB.
The unit will append the '>' character if the command is sucessfully processed.
Get Channel 2 Gain {aaSH} Returns {aaSHxxx} where:
• aa = unit address, range = 00 to 31, only used if interface is RS485, otherwise omit.
• H = command code
• xxx = Channel 2's Gain in 0.5 dB.
The unit will append the '>' character if the command is sucessfully processed.
Get Reference Mode {aaSE} Returns {aaSEx} where:
• aa = unit address, range = 00 to 31, only used if interface is RS485, otherwise omit.
• E = command code
• x = 0 for Internal, 1 for External, and 2 for Auto.
The unit will append the '>' character if the command is sucessfully processed.
Get Alarm Status {aaSA} Returns {aaSAx} where:
• aa = unit address, range = 00 to 31, only used if interface is RS485, otherwise omit.
• A = command code
• X = 0 if no alarm; 1 if alarm.
The unit will append the '>' character if the command is sucessfully processed.
3116-22-23# Manual, Rev. 0 Page 7 04/14/16

C) Commands
Table 1.2 lists the commands for the 3116-22-23# and briefly describes them.
After a command is sent the 3116 sends a return “>” indicating the command has been received and executed.
General Command Format - The general command format is {CND...}, where:
{ = start byte
C = 1 character, either C (command) or S (status)
N = 1 character command or status request
D = 1 character or more of data (depends on command)
} = stop byte
*PLEASE NOTE: The two character {aa}(00-31) prefix, in the table below,
should be used ONLY when RS-485, (OPTION-Q), is selected.
3116-22-23# Manual, Rev. 0 Page 8 04/14/16
TABLE 1.2 3116-22-23# T
w
wo
Two Channel Dowwnconverter
Downconverter Commands
Command Syntax * Description
Set Channel 1 Gain aaCGxxx where:
• aa = unit address, range = 00 to 31, only used if interface is RS485, otherwise omit
• G = command code
• xxx = desired gain in 0.5 dB steps, omit the decimal point:
Range 50 to 350 (5.0 to 35.0 in 0.5 dB steps).
example: {CG155}
Will set Channel 1's gain to 15.5 dB.
The unit will reply with the '>' character if the command is sucessfully processed.
Set Channel 2 Gain aaCHxxx where:
• aa = unit address, range = 00 to 31, only used if interface is RS485, otherwise omit
• H = command code
• xxx = desired gain in 0.5 dB steps, omit the decimal point:
Range 50 to 350 (5.0 to 35.0 in 0.5 dB steps).
example: {CG155}
Will set Channel 2's gain to 15.5 dB.
The unit will reply with the '>' character if the command is sucessfully processed.
Set Reference Mode {aaCEx} where:
• aa = unit address, range = 00 to 31, only used if interface is RS485, otherwise omit
• E = command code
•x = 0 for Internal, 1 for External, and 2 for Auto.
• example: {CE1}
Will set unit's 10 MHz reference mode to External.
The unit will reply with the '>' character if the command is sucessfully processed.

2.0 Installation
2.1 Mechanical
The 3116-22-23# is powered by a 100-240 ± 10% VAC power supply, and housed in a 1 3/4” X 19” X 14” rack
mount chassis. The 3116-22-23# can be secured to a rack using the 4 holes on the front panel. Figure 2.0
shows how the 3116-22-23# is assembled.
POWER
SUPPLY
FIGURE 2.0 3116-22-23# Mechanical Assembly
3116-22-23# Manual, Rev. 0 Page 9 04/14/16

2.2 Rear Panel Input/Output Signals
Figure 2.1 shows the input and output connectors on the rear panel.
AC
GND
J20J2 J1 J10
MONITOR
AND
CONTROL
15 234 678
9
AC1 - POWER IN
AC input for switching
power supply.
100-240 ±10% VAC,
47-63 Hz, 25 watts max.
J10 - MONITOR AND CONTROL
DB9 female connector.
See Table 2.1
J20 - ETHERNET
CONNECTOR
RJ45 Ethernet
Connector (Optional)
RF IN
RF OUT
CHANNEL 1
J2 - RF IN (INPUT)
50ΩBNC female connector
-55 to -35 dBm,
See Table 2.2.
CHANNEL 1
J1 - RF OUT (OUTPUT)
50ΩBNC connector
-20 to 0 dBm,
See Table 2.2.
J18 J3
J18 - EXT REF
OUTPUT
3 dBm, ±3 dB
10 MHz
Ext. Ref. Output
10 MHz REF
OUTPUT
10 MHz
EXT REF
INPUT
J3 - EXT REF INPUT
3 ±3 dB
10 MHz Ext. Ref. Input
J4
RF IN RF OUT
J5
CHANNEL 2
J5 - RF OUT (OUTPUT)
50ΩBNC connector
-20 to 0 dBM,
See Table 2.2.
CHANNEL 2
J2 - RF IN (INPUT)
50ΩBNC female
connector
-55 to -35 dBm,
See Table 2.2.
- CH1 - - CH2 -
FIGURE 2.1 3116-22-23# Rear Panel I/Oʼs
TABLE 2.1 JJ10
TABLE 2.1 J10 Pinouts*
Pin Function
1 Rx-
2 Rx+ (RS-232C)
3 Tx+ (RS-232C)
4Tx-
5GND
6 Alarm Relay: Common
7 Alarm Relay: Normally Open
8 Not Used
9 Alarm Relay: Normally Closed
TABLE 2.22
2.2 Connector Optioons
Options
Option RF L-Band
-N 50ΩType N 75ΩBNC
-NF 50ΩType N 75ΩType N
-NN 50ΩType N 50ΩType N
-S7 50ΩSMA 75ΩBNC
-SF 50ΩSMA 75ΩType N
-SN 50ΩSMA 50ΩType N
-SS 50ΩSMA 50ΩSMA
*Remote Serial Interface
Interface: DB-9 Male Protocol: RS-232C (RS-232C/422/485, Option Q),
9600 baud rate, no parity, 8 data bits, 1 start bit, 1 stop bit.
2.3 Front Panel Controls and Indicators
Figure 2.2 shows the front panel controls and indicators.
S2 - VERT. TOGGLE
Vertical toggle switch that controls
values in the Menu items when in
program mode. Does not function in
the normal display mode.
S1 - HORIZ. TOGGLE
Horizontal toggle switch that
controls which values are being
adjusted. Does not function in
the normal display mode.
MENU
EXECUTE
CH1 G=+25.5 REF=
CH2 G=+25.5 AUTO-E
POWER ALARM
S3 - MENU/EXECUTE BUTTON
Press to get into Program mode
and to execute any changes.
DS6 - ALARM LED
Red LED indicates
an alarm condition.
REMOTE
DS2 - POWER LED
Green LED indicates
presence of DC power
from power supply.
DS3 - REMOTE LED
Yellow LED indicates
remote operation.
LCD DISPLAY
Display shows current mode
and output level in dBm
or gain in dB.
FIGURE 2.2 3116-22-23# Front Panel Controls and Indicators
3116-22-23# Manual, Rev. 0 Page 10 04/14/16

2.4 Installation / Operation
2.4.1 Installing and Operating the 3116-22-23#
1. Connect a -55 dBm to -35 dBm signal to RF IN, J2 (Figure 2.1).
2. Connect the RF OUT, J1, to the external equipment.
3. Connect 100-240 ±10% VAC, 47 - 63 Hz to AC connector on the back panel.
4. Set the gain (+35 dB maximum, in 0.5 ±0.5 dB steps) for the desired output level.
Make sure the output stays within -20 to 0 dBm with the gain.
selected and the input level provided. (See Section 2.5 Menu Settings).
5. Be sure DS2 (green, DC Power) is on and DS6 (red, Alarm) is off (Figure 2.2).
6. AC Fuse - The fuse is a 5 mm X 20 mm, 2 amp slow blow (Type T) and is inserted in the far slot
in the drawer below the AC input as shown in Figure 2.3. There is a spare fuse in the near slot.
If a fuse continues to open, the power supply is most likely defective.
AC Fuse - 2 amp slow blow (Type T),
5 mm X 20 mm
FUSE DRAWER
SPARE FUSE
~
INPUT
100-240± 10%VA
C
47-63 Hz
2A MAX
FUSE
TYPE T 2A GDC
250 VOLT
FOR 100 - 240 V~
~
FIGURE 2.3 Fuse Location and Spare Fuse
3116-22-23# Manual, Rev. 0 Page 11 04/14/16

2.5 Menu Settings
2.5.1 Functions
This section describes operation of the front panel controls. There are three operator switches, the LCD display
and alarm indicator LEDs. All functions for the equipment are controlled by these components. The functions
are (See Figure 2.4):
Power Up
Normal Display
Menu 1 Set CH1 Gain
Menu 2 Set CH2 Gain
Menu 3 Set Reference Mode
Menu 4 Set Remote
Menu 5 Set Remote Interface
Menu 6 Set RS-485 Address
Save Menu When “R” is selected from any above menu or at the end.
Alarm indications appear on the LEDs (see Figure 2.2).
All program changes must start with the operation of the Menu/Execute switch and must also end with the
operation of the Menu/Execute switch verified by the “Save Settings?” Menu. If this sequence is not followed,
none of the changes will take effect. If programming is initiated and no operator action takes place for
approximately 30 seconds (before the final press of the Menu/Execute switch) the display will revert to its
previous status and you will need to start over.
3116-22-23# Manual, Rev. 0 Page 12 04/14/16

2.5.2. Power On Settings
NOTE: THE LAST OPERATING PARAMETERS OF A UNIT ARE RETAINED EVEN WHEN
POWER IS REMOVED. WHEN POWER IS RESTORED, THE UNIT WILL RETURN TO IT'S
PREVIOUS SETTINGS.
When power is first applied, the LCD display goes through three steps.
1. The LCD goes black to show all segments are functioning.
2. The Model and Software version will be displayed.
3116-22-23#W18
Rev. 4.00
3. The present frequency and gain of the downconverter is shown.
CH1 G=+25.5 REF=
CH2 G=+25.5 AUTO-E
The unit is now operational and ready for any changes the operator may desire.
2.5.3 Control Switches
1. Menu/Execute - Any change to the programming of the unit must be initiated by pressing the
Menu/Execute switch and completed by pressing the Menu/Execute switch.
2. Horizontal Switch - This switch is mounted so its movement is horizontal and moves the
display cursor left or right.
3. Vertical Switch - This switch is mounted so its movement is vertical and has two functions:
a. During gain changes, the vertical movement will raise or lower the number
in the direction of the arrows.
b. For other functions such Remote on/off, the vertical switch will alternately turn the function
on or off regardless of the direction operated.
3116-22-23# Manual, Rev. 0 Page 13 04/14/16

2.5.4 Gain Changes
When you get to this menu note that gain changes will be made as you make them but if you do not wish to
save the changes you have made, scroll to “R” and push the menu/Execute switch and select “NO” in the
“SAVE SETTINGS?” window or do not press the Menu/Execute switch; simply do nothing for
approximately 30 seconds, and the system will return to the normal operating mode.
NOTE: THE GAIN WILL CHANGE AS YOU ADJUST THE NUMBERS. HOWEVER, THE
VALUE WILL NOT BE STORED UNTIL YOU INDICATE YES IN THE SAVE SETTINGS
WINDOW. DO NOT SET A GAIN THAT WOULD EXCEED 0 dBm OR HAVE LESS
THAN -20 dBm OUTPUT LEVEL.
Press the Up/Down switch to change the gain in 0.5, 1, or 10 dB steps and then push the
Menu/Execute switch to get to the Save Settings Menu:
GAIN = +17.5 R
When the display indicates the value desired you can push the Menu/Execute switch to the next item
OR you can scroll to “R”, push the Menu/Execute switch to get to:
SAVE SETTINGS? Y N
Selecting Ywill save the new settings. Selecting Nwill revert to the previous settings.
Figure 2.4 (page 15) gives the menu items and how to make changes.
3116-22-23# Manual, Rev. 0 Page 14 04/14/16

2.5.5 Alarm Indications
An alarm condition will occur if any local oscillator phase lock loop (PLL) comes out of lock.
The Remote LED will light when you select the Remote mode.
2.5.6 10 MHz Reference Mode Operation
Internal Mode: The unit uses its own built-in 10 MHz OCXO. The Internal Reference is present on the
Reference Output Connector, J1, J5. REF = INT appears on the front panel display.
External Mode: The unit uses a 10 MHz Reference that is connected to the External Reference Input, J2.
REF = EXT appears on the front panel display. The External 10 MHz Reference level
must be +3dBm, ±3dB. If the External 10 MHz signal does not meet the unit’s
specified parameters then the unit will not function properly. The External Reference
is present on the Reference Output connector, J18.
Auto Mode: The unit defaults to the External 10 MHz Reference as long as the level meets the +3dBm,
±3dB specification. REF = AUTO - E appears on the front panel display where the -E
indicates that the unit is using the External 10 MHz Reference. The External Reference is
present on the Reference Output connector, J18.
If the external 10 MHz Reference signal level is less than -1dBm, the unit switches to
Internal 10 MHz Reference. REF = AUTO -I appears on the front panel display
where -I indicates that the unit is using the Internal 10 MHz Reference. The Internal
10 MHz Reference is present on the reference output connector, J18.
3116-22-23# Manual, Rev. 0 Page 15 04/14/16

NORMAL DISPLAY
PUSHING MENU/EXECUTE SEQUENCE
3116-72W18
4.1
CH1 G=+25.5 REF=
CH2 G=+25.5 AUTO-E
SCROLL <>
SCROLL
PUSH BUTTON
PUSH BUTTON
Power Up 1:
Power Up 2:
Normal Display
Menu 1 Set CH1 Gain
Menu 2 Set CH2 Gain
Menu 3 Set Reference Mode
Menu 4 Set Remote
Menu 5 Set Remote Interface
Menu 6 Set RS485 Address
Save? When go to end
SCROLL <>
SCROLL
PUSH BUTTON
SCROLL <>
SCROLL
PUSH BUTTON
R
R
R
SCROLL <>
SCROLL
PUSH BUTTON
CH1 GAIN = 15.5
CH2 Gain = 15.5
REF MODE = AUTO
INTERFACE = RS232
RS485 ADDRESS = 0
R
R
SAVE SETTINGS? Y N
SCROLL <>
SCROLL
PUSH BUTTON
SCROLL <>
SCROLL
PUSH BUTTON
REMOTE = ON
R
SCROLL <>
SCROLL
PUSH BUTTON
= = = IP Addr = = =
192.168.123.002
ON POWER UP (1)
ON POWER UP (2)
FIGURE 2.4 Menu Display and Sequences
3116-22-23# Manual, Rev. 0 Page 16 04/14/16

3.0 Environmental Use Information
A.Rack-Mounting - To mount this equipment in a rack, please refer to the installation instructions
located in the user manual furnished by the manufacturer of your equipment rack.
B. Mechanical Loading - Mounting of equipment in a rack should be such that a hazardous condition
does not exist due to uneven weight distribution.
C.Elevated Operating Ambient Temperature - If installed in a closed or multi-unit rack assembly,
the operating ambient temperature of the rack may be greater than room ambient temperature.
Therefore, consideration should be given to Tmra. (Maximum Recommended Ambient Temperature)
D. Reduced Air Flow - Installation of the equipment in a rack should be such that the amount of air flow
required for safe operation of the equipment is not compromised. Additional space between units
may be required.
E. Circuit Overloading - Consideration should be given to the connection of the equipment to the supply
circuit and the effect that overloading of circuits could have on over current protection and supply wiring.
Appropriate consideration of equipment name plate rating should be used when addressing this concern.
F. Reliable Earthing - Reliable earthing of rack-mounted equipment should be maintained.
Particular attention should be given to supply connections other than direct connection to the
Branch (use of power strips).
G. Top Cover - There are no serviceable parts inside the product so, the Top Cover should not be removed.
If the Top Cover is removed the ground strap and associated screw MUST BE REINSTALLED
prior to Top Cover screw replacement. FAILURE TO DO this may cause INGRESS and/or EGRESS
emission problems.
3116-22-23# Manual, Rev. 0 Page 17 04/14/16

CROSS TECHNOLOGIES, INC.
6170 Shiloh Road
Alpharetta, Georgia 30005
[phone]
FAX [phone]
Toll Free 888-900-5588
WEB www.crosstechnologies.com
E-MAIL [email protected]
Printed in USA
3116-22-23# Manual, Rev. 0 Page 18 04/14/16