This manual contains descriptions, setup and operating
instructions, specifications, maintenance, and service information for the TTC (Telecommunications Techniques Corporation) Model 41400 RS-449/530/MIL Data Interface.
The RS-449/530/MIL Data Interface allows the FIREBERD
4000 (Rev 3 and above) and FIREBERD 6000 (Revision G
software and above) to be connected to RS-449, MIL-188114, EIA-530, MIL-188C and compatible circuits and to act
as a DTE or DCE device in balanced or unbalanced mode.
1.2 SAFETY CONSIDERATIONS
The following safety considerations should be observed:
• Use a grounding strap when removing or installing
this interface.
• Ensure that power is off when removing or installing
this interface.
• Remove or install the RS-449/530/MIL Data Inter-
face, Model 41400, in a moisture free environment.
• Make sure the RS-449/530/MIL Data Interface, Model
41400, is used with well grounded equipment.
• Always wear safety equipment appropriate for the
job, such as eye protection.
• Never operate the equipment when combustible gases
or fluids are present.
1.3 ENVIRONMENTAL CONSIDERATIONS
The RS-449/530/MIL Data Interface, Model 41400,
should be operated in a non-combustible atmosphere. There
should be no flammable materials in the area. This RS-449/
530/MIL Data Interface, Model 41400, and associated equipment, is sensitive to corrosive materials, including exposure to
salt. This unit is not waterproof.
1.4 INTERFACE FEATURES
The RS-449/530/MIL Data Interface has the following
features.
• Compatible with RS-449, MIL-188-114, EIA-530,
and MIL-188C standards.
• Emulate DTE or DCE.
• Circuit connections using either the 25-pin D-type,
37-pin D-type, or twinax connectors.
• Operates in balanced or unbalanced interface mode.
• User selectable terminating impedance.
• Test in synchronous timing up to 15 Mb/s.
• Test in asynchronous timing up to 20 kb/s.
• Test in recovered timing up to 520 kb/s. (FIREBERD
6000 with clock recovery option.)
• Controlled through the FIREBERD front panel Inter-
face Setup menu or by remote control.
• Control RL and LL lines while emulating DTE and TM
and CTS lines while emulating DCE.
• Select ground termination technique on receive clock
and receive data lines.
• Set the polarity of all interface signaling control leads.
TELECOMMUNICATIONS TECHNIQUES CORPORATION
1
1.5 INTERFACE COMPATIBILITY
1.6 OPTIONS AND ACCESSORIES
The RS-449/530/MIL Data Interface is designed in con-
sideration with the following publications and specifications.
• CCITT Recommendation V.10 (or X.26), Electrical
Characteristics of Unbalanced Double-Current Interchange Circuits.
• CCITT Recommendation V.11 (or X.27), Electrical
Characteristics or Balanced Double-Current Interchange Circuits.
• EIA RS-422-A, December 1978, Electrical Charac-
teristics of Unbalanced Voltage Digital Interface
Circuits.
• EIA RS-423-A, December 1978, Electrical Charac-
teristics of Unbalanced Voltage Digital Interface
Circuits.
• EIA RS-449, November 1977, General Purpose
37-Position Interface for DTE and DCE Terminating Equipment.
• EIA-530, 18 March 1987, High Speed 25-Position
Interface for DTE and DCE Terminating Equipment.
• ISO 4902-1980 (E), Data communication -37-pin and
9-pin DTE/DCE Interface Connectors and Pin
Assignments.
The following cables are available from TTC for the
RS-449/530/MIL Interface Adapter.
• Model 10562, 6" RS-449 DTE 37-pin D to X.21 DTE
15-pin.
• Model 10213, 6' RS-232/EIA-530/V.24 male-to-male
connectors.
• Model 10418, 10' RS-232/EIA-530/V.24 male-to-male
connectors.
• Model 10215, 6' RS-449/530/MIL-188 37-pin D,
male-to-male cable.
• Model 10417, 10' RS-449/530/MIL-188 37-pin D,
male-to-male cable.
• Model 10496, 6' MIL-188 male 37-pin D to male
25-pin D cable.
• Model 10538, 6' MIL-188 male 37-pin D to female
25-pin D cable.
• Model 30917, 10' concentric Twinax, 124 ohm.
• MIL-STD-188-114, March 1976, Electrical Charac-
teristics of Digital Interface Circuits Standard.
• MIL-STD-188-100, 15 November 1972, Common
Long Haul and Tactical Communication System Technical Standards.
• MIL-STD-188C, 1969, Military Communications
Technical Standard.
2
TELECOMMUNICATIONS TECHNIQUES CORPORATION
INTERFACE DESCRIPTION
SECTION 2
2.1 INTRODUCTION
The RS-449/530/MIL Data Interface is selected and
configured from the FIREBERD mainframe using the
INTERFACE SETUP category or from a computer. The
RS-449/530/MIL Data Interface menu remote control are
discussed in Section 4 for the FIREBERD 4000 and
FIREBERD 6000 Reference Manuals.
This section contains a functional description of each of
the RS-449/530/MIL Data Interface capabilities and features.
2.2 PHYSICAL DESCRIPTION REQUIREMENTS
The RS-449/530/MIL Data Interface has one 37-pin
D-type connector and one 25-pin D-type connector. See
Figure 2-1. Both connectors can be configured as either a
DTE or DCE device through the interface setup menu. The
37-pin D-type connector (RS-449, MIL-188-114) and the
25-pin D-type connector (EIA-530, MIL-188C) provide access to any RS-449, MIL-188-114, EIA-530, or MIL-188C
compatible circuit. The corner pins of each connector are
labeled with the appropriate pin number. See Table 2-1 for
descriptions on the pin outs for each connector.
In addition to the two D-type connectors the interface has
five twinax connectors labeled RCV DATA, RCV CLK, TX
DATA, TX CLK OUT, and EXT TX CLK IN which allow the
FIREBERD to test a wide variety of data handling devices.
See Table 2-2 for twinax connector references.
A six-position DIP switch is accessible on the side panel
of the interface. The DIP switch allows for type of
ground termination to be selected for the Receive Clock,
Receive Data, and the external Transmit Clock.
NOTE: The 25-pin D-type, 37-pin D-type, and the twinax
connectors are all wired in parallel. Connect only one
type of connector at a time.
EIA-530/MIL-188C
14
1
RS-449/MIL
INTERFACE
ADAPTOR
RCV DATARCV CLKTX DATA
The RS-449/530/MIL Data Interface
TELECOMMUNICATIONS TECHNIQUES CORPORATION
25
20
13
1
Figure 2-1
RS-449/MIL-188-114
TX CLK OUT
EXT TX CLK IN
37
19
MODEL 41400
9500384-00
3
4
Table 2-1
RS-449/530/MIL INTERFACE PIN CONNECTIONS
1
2
2
2
2
1
2
Designations
EIA
Shield
AB
CCITT
—
102
BA
BB
CA
CB
CC
CD
CF
DA
DB
DD
LL
RL
TM
103
104
105
106Clear to Send
107DCE Ready
108.2DTE Ready
109Received Line
113Transmit Signal
114Transmit Signal
115Receiver Signal
141Local Loopback
140Remote Loopback
142Test Mode
25 Pin
AB
1
7
214
316
TELECOMMUNICATIONS TECHNIQUES CORPORATION
419
513
1
2
622
2023
810
2411
1512
17 9
1
18
21
25
EIA 530/188C
Description
Shield
Signal Ground
Transmitted Data
Received Data
Request to Send
Signal Detector
Element Timing (DTE)
Element Timing (DCE)
37 Pin RS449
20
4
6
7
9
11
12
13
17
5
8
10
14
18
BCircuit
ShieldShield
SGSignal Ground
SCSend Common
RCReceive Common
1
22
24
SDSend Data
2
RDReceive Data
1
25
27
29
RSRequest to Send
2
CSClear to Send
2
DMData Mode
2
30
31
35
TRTerminal Ready
2
RRReceiver Ready
1
TTTerminal Timing
2
23
26
STSend Timing
1
RTReceive T iming
LLLocal Loopback
RLRemote Loopback
TMTest Mode
A
1
19
37
449/MIL-188-114
Description
Status at Connectors
DCE Mode
DTE Mode
Connected to chassis ground
Connected to chassis ground
The RS-449/530/MIL Data Interface, Model 41400,
should be stored in the original shipping container when not
in use. Both the FIREBERD and the RS-449/530/MIL Data
Interface, Model 41400, should be stored in a moisture and
vibration free environment.
2.2.5Unpacking, Assembly, and Installation
Instructions
The package containing the RS-449/530/MIL Data Interface, Model 41400, should be carefully checked for exterior
damage. If no damage is apparent, the package should be
opened carefully so that the RS-449/530/MIL Data Interface,
Model 41400, is not damaged with a cutting blade or other
sharp object. The RS-449/530/MIL Data Interface, Model
41400, should be checked against the bill of materials (BOM)
to make sure that everything matches. Check the RS-449/
530/MIL Data Interface, Model 41400, for any apparent
exterior damage. Report any damage to the carrier and to
TTC. Refer to warranty and return information in Chapter 8
of this manual.
2.2.2Equipment and Items Included
There is no equipment required to install the RS-449/530/
MIL Data Interface, Model 41400. The RS-449/530/MIL
Data Interface, Model 41400, is simply installed into the
FIREBERD with thumb screws. Refer to paragraph 5.2 for
installation instructions. No other equipment is necessary or
provided. No other items are included with the RS-449/530/
MIL Data Interface, Model 41400, other than this Operating
Manual.
2.2.3Tools and Equipment Required for
Periodic Maintenance
There are no tools or equipment required for periodic
maintenance. Periodic maintenance consists of cleaning the
RS-449/530/MIL Data Interface, Model 41400’s exterior
with a clean, lint free cloth. Cleaning sprays should not be
used directly on the interface. Contacts should require little or
no periodic maintenance. Contacts may be cleaned with a
clean lint-free cloth. Contacts should not be cleaned with an
abrasive cleaner.
Assembly of the RS-449/530/MIL Data Interface, Model
41400, is not required. The unit comes completely assembled. The interface itself, is the lowest replaceable unit
(LRU). Installation procedures are provided in Section(s) 3
and 5 of this manual.
2.3 FUNCTIONAL DESCRIPTION
The RS-449/530/MIL Data Interface, Model 41400, gives
the FIREBERD 6000 DCE and DTE emulation capabilities.
The RS-449/530/MIL Data Interface, Model 41400, has
25-pin D-type and 37-pin D-type or twinax connectors. In
addition, the RS-449/530/MIL Data Interface, Model 41400,
is capable of operating in either a balanced or unbalanced
mode. Control of the RS-449/530/MIL Data Interface, Model
41400, is via the FIREBERD 6000 front panel interface setup
menu or by remote control. The RS-449/530/MIL Data Interface, Model 41400, is capable of receiving data and clock
inputs from a wide variety of data sources. It also has data and
clock outputs for testing purposes. Internal circuitry consists
of an internal clock generator, pattern generator, and receiver.
This circuitry allows for a wide variety of testing capabilities.
A six-position DIP switch allows for the selection of the
ground termination. Paragraph 2.3.6 contains additional DIP
switch details.
TELECOMMUNICATIONS TECHNIQUES CORPORATION
5
The RS-449/530/MIL Data Interface provides the FIREBERD Communications Analyzer with the ability to test and
analyze RS-449, MIL-188-114, EIA-530, and MIL-188C
compatible circuits using either the 25-pin, 37-pin, or twinax
connectors. The following information provides a functional
description of each TYPE of interface operation. For more
information on TYPE selection, see Section 3.
2.3.1 RS-449
When TYPE RS449 is selected, the RS-449/530/MIL
Interface operates in accordance with EIA RS-449, CCITT
V.10 and V.11, and ISO 4902-1980. TYPE RS449 enables a
FIREBERD to act as data terminal equipment (DTE) or data
communications equipment (DCE) when D-type connector is
selected. Connections are made using a 37-pin D-type connector or twinax connector. Operation is possible in balanced
or unbalanced mode. Balanced mode indicates that each
signal is transmitted on two leads in which the voltage is equal
in magnitude and opposite in polarity with respect to a
common reference. This mode is preferred when minimum
noise and cross talk is desired. Unbalanced mode indicates
that each signal is transmitted on one lead with respect to a
common ground. Data transmission is supported in synchronous or asynchronous timing. With asynchronous timing,
asynchronous data analysis can be performed at speeds up to
20 kb/s. With synchronous timing, operation at 15 Mb/s is
possible.
TYPE EIA530 enables a FIREBERD to act as data terminal
equipment (DTE) or data communications equipment (DCE).
Connections are made using a 25-pin D-type connector. Operation is possible in balanced or unbalanced mode. Balanced
mode indicates that each signal is transmitted on two leads in
which the voltage is equal in magnitude and opposite in
polarity with respect to a common reference. This mode is
preferred when minimum noise and cross talk is desired.
Unbalanced mode indicates that each signal is transmitted on
one lead with respect to a common ground. Data transmission
is supported in synchronous or asynchronous timing. With
asynchronous timing, asynchronous data analysis can be performed at speeds up to 20 kb/s. With synchronous timing,
operation at 15 Mb/s is possible.
2.3.4 MIL-188C
When TYPE 188C is selected, the RS-449/530/MIL
Interface operates in accordance with the MIL-STD-188C
Interface specification. This interface enables the
FIREBERD to act as data terminal equipment (DTE) or data
communications equipment (DCE). Connections are made
using a 25-pin D-type connector. Operation is in unbalanced
mode. Unbalanced mode indicates that each signal is transmitted on one lead with respect to a common ground. Data
transmission is supported in synchronous or asynchronous
timing. With asynchronous timing, asynchronous data analysis can be performed at speeds up to 20 kb/s. With synchronous timing, operation at 64 kb/s is possible.
2.3.2 MIL-188-114
When TYPE 188114 is selected, the RS-449/530/MIL
Interface operates in accordance with the MIL-STD-188-114
Bipolar Balanced and Unbalanced Interface Specification,
dated March 1976. TYPE 188114 enables a FIREBERD to act
as data terminal equipment (DTE) or data communications
equipment (DCE). Connections are made using a 37-pin
D-type connector with operation possible in balanced or
unbalanced mode. Balance mode indicates that each signal is
transmitted on two leads in which the voltage is equal in
magnitude and opposite in polarity with respect to a common
reference. This mode is preferred when minimum noise and
cross talk is desired. Unbalanced mode indicates that each
signal is transmitted on one lead with respect to a common
ground. Data transmission is supported in synchronous or
asynchronous timing. With asynchronous timing, asynchronous data analysis can be performed at speeds up to 20 kb/s.
With synchronous timing, operation at 15 Mb/s is possible.
2.3.3 EIA-530
When TYPE EIA530 is selected, the RS-449/530/MIL
Interface operates in accordance with EIA 530 specifications.
2.3.5 Twinax Connectors
The five twinax connectors RCV DATA, RCV CLK,
TX DATA, TX CLK OUT, and EXT TX CLK IN enables the
FIREBERD to test a wide variety of data handling devices.
The connectors enable operation in balanced and unbalanced
mode with the connector shields connected to chassis ground,
the middle conductor carrying the Category II (B) signal, and
the center carrying the Category I (A) signal. Balanced mode
indicates that each signal is transmitted on two leads (A & B)
in which the voltage is equal in magnitude and opposite in
polarity with respect to a common reference. This mode is
preferred when minimum noise and cross talk is desired.
Unbalanced mode indicates that each signal is transmitted on
one lead (A) with respect to a common ground. Data
transmission is supported in synchronous or asynchronous
timing. With asynchronous timing, asynchronous data analysis can be performed at speeds up to 20 kb/s. With synchronous timing, operation at 15 Mb/s is possible. Data generated
by the FIREBERD is transmitted through the TX DATA
jack. The synchronous transmitted clock signal is sent
through the TX CLK OUT jack. Data is returned to the
FIREBERD for analysis through the RCV DATA jack. The
synchronous returned clock is sent through the RCV CLK
6
TELECOMMUNICATIONS TECHNIQUES CORPORATION
jack. A clock signal via the EXT TX CLK IN jack may be
selected as the timing source for the transmitted data signal.
2.3.6 DIP Switch
resistors are not terminated to ground allowing line to line
termination. In the opposite (CLOSED) position the
center of the resistors are terminated to ground allowing
line to ground termination.
Use DIP switch position 3, 4, and 5 to reduce the amplitude noise level on the EXT TX CLK IN, RCV CLK, and RCV
DATA leads by changing the line to line termination to line to
ground termination. The 124 ohm line to line termination of
the external transmit clock input, receive clock, and receive
data may be split by placing a 62 ohm resistor from each line
to ground. Figure 2-2 illustrates the factory settings for the
DIP switches.
Open
Closed
1 2 3 4 5 6
9500385-00
Figure 2-2
DIP Switch Factory Settings
Position 1 and Position 2 are not used.
Position 3 External Tx Clock Input -
This switch allows
the center of the two EXT TX CLK IN 62 ohm resistors
to be connected to ground. In the normal (OPEN)
position the two 62 ohm resistors are not terminated to
ground allowing line to line termination. In the opposite
(CLOSED) position the center of the resistors are terminated to ground allowing line to ground termination.
Position 4 Receive Clock - This switch allows the center
of the two RCV CLK 62 ohm resistors to be connected to
ground. In the normal (OPEN) position the two 62 ohm
resistors are not terminated to ground allowing line to line
termination. In the opposite (CLOSED) position the
center of the resistors are terminated to ground allowing
line to ground termination.
Position 5 Receive Data - This switch allows the center
of the two RCV DATA 62 ohm resistors to be connected
to ground. In the normal (OPEN) position the two 62 ohm
2.4 MAINFRAME OPERATION WITH THE
RS-449/530/MIL INTERFACE
2.4.1 Emulating Synchronous DTE
The FIREBERD mainframe generator clock and pattern
selections must be configured for operation with the
RS-449/530/MIL Interface. Figure 2-3 illustrates a simplified
block diagram of the FIREBERD emulating synchronous
DTE. The diagram shows the relationship between the generator clock, test pattern generator, receiver, and RS-449/530/
MIL Interface transmit and receive data and clock leads. Two
sets of pin numbers are identified: the EIA-530/MIL-188C
connector and the RS-449/MIL 188-114 which is in parenthesis. See Table 2-1 for pin out descriptions.
NOTE: Only Category I circuits are identified. See Table 2-1
for corresponding Category II circuits.
The generator clock selection establishes which clock
source is used during testing: the internal (INTRNL), interface (INTF), or external (BNC). When the generator clock is
set to INTRNL, the mainframe supplies the clock source from
the internal generator clock which is used to generate the test
pattern on Pin 2 Transmitted Data (Pin 4 Send Data) and
supply the external transmit clock on Pin 24 Transmit Clock
DTE source (Pin 17 Terminal Timing DTE source). The DCE
transmit clock on Pin 15 Transmit Clock DCE source (Pin 5
Send Timing DCE source) is ignored when the internal
mainframe clock is used.
With the generator clock set to INTF, the clock on Pin 15
(Pin 5) is used as the transmit timing source for transmitting
the test pattern on Pin 2 (Pin 4). It also supplies the external
transmit clock on Pin 24 (Pin 17). Typically, the DCE supplies
transmit timing to the DTE on Pin 15 (Pin 5) and the DTE
(FIREBERD) generates the data (test pattern) from that clock
and redistributes the timing signal on Pin 24 (Pin 17) to the
DCE. Setting the generator clock for INTF is the recommended selection when the FIREBERD is emulating DTE.
With the generator clock set for BNC, the mainframe is
supplied with the clock source through the GEN CLK IN
connector on the rear panel. The received data is clocked in
on Pin 3 Received Data (Pin 6 Receive Data) with the receive
clock from the DCE on Pin 17 Receive Clock (Pin 8 Receive
Timing) supplying the timing. Signal analysis is performed
on the received data and receive clock signals.
TELECOMMUNICATIONS TECHNIQUES CORPORATION
7
GEN CLK IN
BNC
INTRNL
Internal
Gen Clock
FIREBERD
INTF
Pattern
Generator
INTF
CLK
DATA
RS-449/530/MIL
Transmit Data 2
Send Data (4)
Transmit CLK DTE Source 24
Terminal Timing (17)
Transmit CLK DCE Source 15
Send Timing (5)
Receiver
KEY
EIA 530/188C Reference
RS-449/MIL-188-114 Reference
FIREBERD Emulating Synchronous DTE
Set the pattern selection to any test pattern, except FOX
and USER 1-3. If the Long User Option is installed these
patterns may be selected.
During DTE emulation, the Interface Status and Control
panel switches control RTS (Request To Send) and DTR
(Data Terminal Ready) by turning the leads off and on. The
status of RLSD (Received Line Signal Detector), DSR (Data
Set Ready), TM (Test Mode), and CTS (Clear To Send) is
monitored and displayed on the front panel.
CLK
DATA
Receive CLK 17
Receive Timing (8)
Receive DATA 3
Receive DATA (6)
Figure 2-3
During DCE emulation, the Interface Status and Control
panel switches control RLSD (Received Line Signal Detector) and DSR (Data Set Ready) by turning the leads off and on.
The status of RTS (Request to Send), LL (Local Loopback),
RL (Remote Loopback), and DTR (Data Terminal Ready) is
monitored and displayed on the front panel. TM (Test Mode)
and CTS (Clear to Send) are controlled using the Signaling
Menu.
2.4.3 Emulating Asynchronous DTE/DCE
9500386-00
2.4.2 Operating as Synchronous DCE
The FIREBERD mainframe generator clock and pattern
selections must be configured for operation with the RS-449/
530/MIL Interface. Figure 2-4 illustrates a simplified block
diagram of the FIREBERD 4000 emulating synchronous
DCE. The diagram shows the relationship between the
generator clock, test pattern generator, receiver, and RS-449/
530/MIL Interface transmit and receive data and clock leads.
Two sets of pin numbers are identified: the EIA-530/MIL188C connector and the RS-449/MIL 188-114 which is in
parenthesis. See Table 2-1 for pin out descriptions.
8
When selecting asynchronous DTE/DCE operation the
data bits (5, 6, 7, on 8), parity (EVEN, ODD, NONE), and the
stop bits (1, 1.5, or 2) need to match the parameters of the
equipment being tested. The FIREBERD can emulate asynchronous DTE/DCE and operate from 50 kb/s to 20 kb/s. Set
the generator clock to INTERNAL and select the appropriate
clock frequency to match the required data rate. Do not use the
BNC selections when operating asynchronously.
The following patterns are valid in asynchronous testing:
MARK, SPACE, 1:1, 63, 511, 2047, 215-1, FOX, and USER
TELECOMMUNICATIONS TECHNIQUES CORPORATION
GEN CLK IN
KEY
EIA 530/188C Reference
RS-449/MIL-188-114 Reference
BNC
INTRNL
Internal
Gen Clock
FIREBERD
RS-449/530/MIL
INTF
Receiver
Pattern
Generator
DATA
CLK
TT
CLK
DATA
Figure 2-4
FIREBERD Emulating Synchronous DCE
Received DATA 3
Received DATA (6)
Receive CLK 17
Receive Timing (8)
Transmit CLK DTE Source 24
Terminal Timing (17)
Transmit CLK DCE Source 15
Send Timing (5)
TT
Delay
ST
Transmitted DATA 2
Send DATA (4)
9500387-00
1-3. If any other pattern is selected, ASYNC PATTERN
CONTENTION flashes in the ANALYSIS RESULTS
display.
During DCE emulation, the Interface Status and Control
panel switches control RLSD (Received Line Signal Detector) and DSR (Data Set Ready) by turning the leads off and on.
RL (Remote Loopback) and LL (Local Loopback) are controlled using the Signaling Menu. The status of RTS (Request
to Send), LL (Local Loopback), RL (Remote Loopback), and
DTR (Data Terminal Ready) is monitored and displayed on
the front panel. During DTE emulation, the Interface status
and Control panel switches control RTS (Request To Send)
and DTR (Data Terminal Ready) by turning the leads off and
on. The status of RLSD (Received Line Signal Detector),
DSR (Data Set Ready), TM (Test Mode), and CTS (Clear To
Send) is monitored and displayed on the front panel.
2.4.4 Operating in the Self-Loop Mode
In DTE emulation, the self-loop mode loops the TD lead
Pin 2 (Pin 4) to the RD lead Pin 3 (Pin 6) and the XTC lead Pin
24 (Pin 17) to the RC lead Pin 17 (Pin 8). Timing can be
provided by the DCE on Pin 15 (Pin 5) [generator clock set to
INTF], the internal generator clock [generator clock set to
INTRNL], or the rear panel GEN CLK IN connection [generator clock set to BNC].
In DCE emulation, the self-loop mode loops the RD lead
Pin 3 (Pin 6) to the TD lead Pin 2 (Pin 4) and the RC lead Pin
17 (Pin 8) to the XTC lead Pin 24 (Pin 17). Timing can be
provided by the internal generator clock (generator clock set
to INTRNL) or the rear panel GEN CLK IN connection
(generator clock set to BNC). User connections do not have
to be disconnected to perform the self-loop test.
TELECOMMUNICATIONS TECHNIQUES CORPORATION
9
10
TELECOMMUNICATIONS TECHNIQUES CORPORATION
FIREBERD 4000
INSTALLATION AND OPERATION
SECTION 3
3.1 INTRODUCTION
This section describes how to install, configure, and
operate the RS-449/530/MIL Data Interface with a FIREBERD 4000. Refer to the FIREBERD 4000 User’s Guide or
the FIREBERD 4000 Reference Manual for mainframe oper-
ating procedures.
NOTE: Configure the FIREBERD 4000 and the RS-449/530/
MIL Data Interface before connecting the FIREBERD to the circuit under test. This avoids unnecessary circuit downtime.
3.1.1Repair and Replace Procedure
The RS-449/530/MIL Data Interface, Model 41400, is
provided as a self-contained unit. If repairs are necessary, the
entire interface should be replaced. Section 8 of this manual
contains information about the warranty and return policies.
3.2 INSTALLING THE INTERFACE
The following procedure describes how to install the
RS-449/530/MIL Interface in the FIREBERD 4000. Figure
3-1 illustrates how the interface is installed.
CAUTION: Before installing or removing the interface mod-
ule, turn the AC power OFF to the FIREBERD
mainframe. Damage can occur to the interface
and mainframe.
1.Power OFF the FIREBERD.
2.Face the FIREBERD rear panel.
NOTE:The FIREBERD 4000 may have two interface
slots. SLOT1 (bottom slot) is the standard
interface slot and SLOT2 (top slot) is the
optional interface slot (Option 4001).
Installing a Modular Interface
TELECOMMUNICATIONS TECHNIQUES CORPORATION
9500388-00
Figure 3-1
11
3.Insert the interface into a vacant interface slot.
Verify that the interface faces up.
4.Slide the module into the FIREBERD until the
interface panel is flush with the rear panel. Make
sure the PC board edges are fitted into the card
guides inside the interface slot.
Use the SETUP SELECT switch to step through the menus.
Press the softkeys to select a function as indicated by the
softkey labels on the bottom line of the display. To return to
the interface select menu, press the mainframe HOME key.
All interface menu settings are retained when power is removed from the mainframe. See Figures 3-2 through 3-7 for
the interface menus.
5.Secure the interface with the two thumbscrews on
the interface panel.
3. 2. 1 Performance Verification
The proper performance of the RS-449/530/MIL
Data Interface, Model 41400, is verified by installing the
interface in the FIREBERD 4000 as described in the previous
paragraphs. The FIREBERD 4000 should be setup as described in the step-by-step procedures in the following paragraphs. The equipment should be powered-up and the various
menus and setups performed to ensure proper operation. If
any test fails, be sure to check connections, continuity of
cables, and proper seating of the interface into the FIREBERD.
An analysis of test results and proper performance indicators
are provided in the analysis results section at the back of this
section. In addition, the FIREBERD 4000 Reference Manual
provides additional performance verification and validation
results.
3.2.2Calibration Procedures
The RS-449/530/MIL Data Interface, Model 41400, is
factory checked and requires no calibration. The FIREBERD
4000 is calibrated as described in the FIREBERD 4000
Reference Manual.
3.2.3Parts List and Vendors List
No parts list or vendors list is provided because the
RS-449/530/MIL Data Interface, Model 41400, is the LRU.
See Section 8 of this manual for replacement and warranty
information.
3.3.1 Operating Type Menu
The Operating Type (TYPE) menu allows the user to
select either 188114, RS449, EIA530, or 188C as the type of
interface operation. Press the appropriate softkey to select the
desired operating type. Press the MORE key to display the
188C softkey label. Modifying TYPE will cause a test restart.
188114 - The 188114 operating type configures the
interface to be connected to a MIL-188-114 compatible
circuit.
RS449 - The RS449 operating type configures the inter-
face to be connected to a RS-449 compatible circuit.
EIA530 - The EIA530 operating type configures the
interface to be connected to a EIA-530 compatible cir-
cuit.
188C - The 188C operating type configures the interface
to be connected to a MIL-188C compatible circuit.
3.3.2Connector Menu
The connector (CONNECTOR) menu only appears when
TYPE 188114 or TYPE RS449 is selected. This menu
controls the type of data interface which the FIREBERD can
be connected to. Modifying CONNECTOR will causes a test
restart. Pressing the associated softkey selects either D-TYPE
or TWINAX.
D-TYPE - When the D-TYPE softkey is pressed, the
interface is configured to use the RS-449/MIL188-114,
37-pin connector.
3.3 FIREBERD 4000 INTERFACE SET-UP
This section describes how to access the interface menu
and discusses each of the menu selections in the RS-449/530/
MIL Data Interface menu.
The RS-449/530/MIL Data Interface is controlled through
the FIREBERD 4000 INTERFACE SETUP category. Press
the MIL449 softkey to access the MIL449 interface menu.
12
TWINAX - When the TWINAX softkey is pressed, the
interface is configured to use the twinax connectors.
3.3.3 Emulate Menu
The Emulate (EMULATE) menu establishes the interface emulation mode. Pressing the associated softkey selects
either DTE or DCE emulation. This menu does not appear
when the selected CONNECTOR is TWINAX.
TELECOMMUNICATIONS TECHNIQUES CORPORATION
Figure 3-2
FIREBERD 4000 RS-449/530/MIL Data Interface Setup Menu
MORE
Type RS-449 D-Type
IMPEDANCE: XXXXXX
78 100 124
UNTERM
SIGNALING: ON=XXX
POS NEG
MODE: UNBAL
BAL UNBAL
MODE: BAL
BAL UNBAL
MODE: XXXXXX
BAL UNBAL
EMULATE: XXXXXX
DTE DCE
★
TM:XXX CTS:XXX
LL:XXX RL:XXX
★★
TM CTS
LL RL
9500389-00
CONNECTOR: XXXXX
D-TYPE TWINAX
TYPE: RS449
188114 RS449 EIA530
TYPE: XXXXXX
188114 RS449 EIA530
INTERFACE: MIL449
INT232 MIL449 INT188
MORE
188C
CONNECTOR: D-TYPE
D-TYPE TWINAX
★
RCV CLOCK: XXXXXX
TT ST
TIMING: SYNC
ASYNC SYNC
TIMING: XXXXXX
ASYNC SYNC
STOP BITS: XXXXXX
1 1.5 2
PARITY: XXXXXX
EVEN ODD NONE
DATA BITS: XXXXXX
5 6 7
8
TIMING: ASYNC
ASYNC SYNC
EMULATE DCE
EMULATE DTE
★
★★
Figure 3-2
Type RS-449 D-Type
FIREBERD 4000 RS-449/530/MIL Data Interface Setup Menu
INTERFACE: XXXXXX
INT232 MIL449 INT188
TELECOMMUNICATIONS TECHNIQUES CORPORATION
13
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