GatesAir Intraplex DA-191B User manual

GatesAir.com
Intraplex®
DA-191B
Four-Port Asynchronous
Data Module
Version 1
Installation and Operation Manual

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*Version numbers usually correspond to software releases. If the manual versions differ in number from the release, the front page shows both
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GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
TABLE OF CONTENTS
Section 1 Introduction ................................................................................................................... 1
Section 2 Functional Description and Setup................................................................................ 2
2.1 General............................................................................................................................ 2
2.2 Transmit Side.................................................................................................................. 4
2.3 Receive Side .................................................................................................................... 4
2.4 Alerts/Alarms.................................................................................................................. 4
2.5 Drop and Insert Operation............................................................................................ 5
2.6 Compatibility With Earlier DA-191 Module Versions ............................................... 5
2.7 Controls and Indicators................................................................................................. 6
2.7.1 Configuring the Data Ports.................................................................................... 8
2.7.2 Time Slot Selection................................................................................................ 8
2.7.3 Other Configuration Options................................................................................. 9
2.6 Remote Control Interface............................................................................................ 10
2.6.1 P Codes................................................................................................................ 11
2.6.2 S Code.................................................................................................................. 15
Section 3 Installation Procedure................................................................................................. 16
Section 4 Testing .......................................................................................................................... 18
Section 5 Specifications................................................................................................................ 19
Appendix A Module Adapters - DA-191B................................................................................... 1
A.1 MA-404 Module Adapter............................................................................................... 2
A.2 MA-418 Module Adapter............................................................................................... 3
List of Figures
Figure 2-1: DA-191B Data Module, Block Diagram.............................................................. 3
Figure 2-2: Example of a Three-Site System Using Drop and Insert...................................... 5
Figure 2-3: DA-191B Data Module, Front View.................................................................... 6
Figure 2-4: DA-191B Data Module, Top View ...................................................................... 7

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
List of Tables
Table 2-1: Data Rate and Time Slot Usage....................................................................... 2
Table 2-2: LED Indicators................................................................................................ 8
Table 2-3: Data Port Configuration - S1, Positions 1 - 3.................................................. 8
Table 2-4: Time Slot Selection - S1, Positions 4 - 8.........................................................9
Table 2-5: Configuration Switches - S2..........................................................................10
Table 2-6: Card Address Setting - S3 ............................................................................. 11
Table 2-7: Remote Configuration Settings (P Codes) ....................................................13
Table 2-8: Time Slot Selection Via Remote Access....................................................... 14
Table 2-9: Data Port Configuration Via Remote Access................................................ 15
Table 2-10: Remote Status Queries (S Codes)....................................................................... 15

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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Section 1
Introduction
This manual describes the setup and installation procedures for the Intraplex Products DA-191B
Four-Port Asynchronous Data Module, Rev. A and above. Experienced users may refer directly
to the tables in Section 2 for configuration data.
Additional information about this system is contained in your Intraplex multiplexer operation
manual.
The DA-191B is a four-port data module, designed for use in the Intraplex Terminal and
Drop/Insert Multiplexers. The module provides transmission of one to four asynchronous data
channels over T1, E1 and other digital communications facilities, with either an RS-232C or an
RS-449 data interface.
The maximum data rate is 38.4 kbps for one-, two-, or four-channel operation. The module uses
one to eight time slots depending on the number of channels used and the data rates of the
channels being transmitted.
User-adjustable switches allow configuration of several parameters:
Maximum data rate
Time slot use
Transmit/receive direction for drop and insert operation
T1 or E1 (2 Mbps) system compatibility
Starting time slot selection
Data loopback for testing
Local or remote control access
Remote control access address

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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Section 2
Functional Description and Setup
2.1 General
Figure 2-1 shows a simplified block diagram of the DA-191B.
The green SRVC LED lights when service is turned on for the module, even if no channel is
actually transmitting or receiving data. (SRVC will go off in an E1 multiplexer if timeslot 16 is
selected for use in a CAS formatted signal.)
The T1 switch allows the user to set the module for use in a T1 or E1 multiplexer, and the CAS
switch, used in an E1 multiplexer only, determines whether time slot 16 is reserved for CAS
signaling.
The TERM switch determines whether the module is set up for use in a terminal multiplexer or a
drop/insert multiplexer. In a drop/insert multiplexer, it also determines whether the module
communicates via the DI-A port or the DI-B port (see Section 2.5, Drop and Insert Operation).
RATE and MODE switches set the maximum data rate and whether the module uses one, two,
four, or eight time slots. Table 2-1 shows the relation between the data rate, which data ports are
activated, and the number of time slots required. The TIME SLOT SELECT switches determine
which time slot(s) are used.
Table 2-1
Data Rate and Time Slot Usage
Maximum
Data Rate Active Ports Time Slots Required
38.4 kbps 1 2
38.4 kbps 1 and 2 4
38.4 kbps 1 to 4 8
19.2 kbps 1 1
19.2 kbps 1 and 2 2
19.2 kbps 1 to 4 4
9.6 kbps 1 and 2 1
9.6 kbps 1 to 4 2

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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TDM BUS
BUS DRIVERS AND
RECEIVERS
INTRAPLEX LOGIC ARRAY
SERIAL
CONTROL BUS
RS232 LINE DRIVERS
AND RECEIVERS
S2
1
2
3
4
5
6
CAS
T1
LOOP
TERM
REMOTE
SRVC
DATA
IN DATA OUT
S3
1
2
3
4
5
6
SET CARD
ADDRESS
S1
1
2
3
4
5
6
7
8
SELECT
TIME SLOT(S)
CH2
CH3 CH4
MODULE ADAPTER
CH2 CH3 CH4
TX DATA (RS-232)
SEND DATA A/B (RS-449)
CTS (RS-232 only)
CARRIER DETECT
(RS-232 only)
GROUND
CH 1
CH 1
SRVC
FRAME LOSS
TX D (SD)
RX D (RD)
LOOP
BACK
(SET MAX
DATA RATE)
(SET # OF
TIME SLOTS)
RATE 1
RATE 0
RX DATA (RS-232)
RX DATA A/B (RS-449)
MODE
TX D (SD)
RX D (RD)
Figure 2-1
DA-191B Data Module, Block Diagram

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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2.2 Transmit Side
The DA-191B converts asynchronous data to a format appropriate for transmission over T1, E1
(2 Mbps), or other digital circuits made up of 64 kbps time slots. Data interface can be either RS-
232C or RS-449/422, depending on the module adapter installed (see Appendix A).
The Intraplex Logic Array contains four transitional coders, one for each port. When a coder
detects a change in the state of the data, it generates a three-bit word containing information about
that transition. The transmit data is sampled at 256 kHz for 38.4 kbps, 128 kHz for 19.2 kbps
operation, or 64 kHz for 9.6 kbps operation.
The resulting bitstream passes via the shelf backplane to the common logic module, which
multiplexes the data into the aggregate signal for transmission.
When used with an RS-232 module adapter, the transmit side of the module has a Clear to Send
(CTS) lead for each of the four ports. This signal is always on, and cannot be controlled by RTS.
A green DATA IN LED lights when active transmission begins on any active channel and
remains lit while transmission continues.
2.3 Receive Side
The multiplexer common module demultiplexes the aggregate receive signal and passes the data
for the selected time slot to the DA-191B module.
When used with an RS-232 module adapter, each port has a Carrier Detect lead which is on
during normal operation. While Carrier Detect is on, the module performs transitional decoding,
retimes the data, and separates the data channels if more than one data port is active. If the
multiplexer loses frame synchronization, all Carrier Detect leads are turned off, and all data ports
are set to MARK.
Each channel then goes to an RS-232 line driver, which converts it to RS-232 level and passes it
to the module adapter. On an RS-232 module adapter, the RS-232C output signal is sent to the
output connector. On an RS-449 module adapter, the RS-232 signal is first converted to RS-
449/422 and then sent to the output connector.
When the LOOP switch is activated, the receive data coming out of the Intraplex Logic Array is
looped back to the transmit input. A green DATA OUT LED lights when on any active channel
begins receiving data and remains lit while reception continues.
2.4 Alerts/Alarms
The DA-191B sends no Alert or Alarm signals to the shelf common card.

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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2.5 Drop and Insert Operation
A drop and insert multiplexer operates at a central point on a three (or more) site system. In the
example shown in Figure 2-2, Site 2 has a drop and insert multiplexer whose DI-A port is
connected to the transmission line to Site 1, and whose DI-B port is connected to the transmission
line to Site 3. Individual payload channels may connect Sites 1 and 2, 1 and 3, or 2 and 3.
Note: In the drop and insert multiplexer at Site 2, a DA-191B module can be set to transmit and
receive either via the DI-A port (toward Site 1) or via the DI-B port (toward Site 3), but not both.
When a DA-191B is installed in a terminal multiplexer (Site 1 or Site 3), its TERM switch must
be set DOWN.
However, when it is installed in a drop and insert multiplexer (Site 2), set the TERM switch
DOWN to transmit and receive via the DI-A port (toward Site 1) and UP to transmit and receive
via the DI-B port (toward Site 3).
Site 2
Drop and Insert Multiplexer
Through Channels
Site 3
Terminal
Multiplexer
To/From
Site 1
(TERM
Switch
DOWN)
To/From
Site 3
(TERM
Switch
UP)
Drop and
Insert
Channels
T1 or
Other
Aggregate
Circuit
D/I
A
D/I
B
Site 1
Terminal
Multiplexer
To/From
Site 2
(TERM
Switch
DOWN)
T1 or
Other
Aggregate
Circuit
To/From
Site 3
(TERM
Switch
DOWN)
To/From
Site 1
(TERM
Switch
DOWN)
To/From
Site 2
(TERM
Switch
DOWN)
D
A
1
9
1
B
D
A
1
9
1
B
D
A
1
9
1
B
D
A
1
9
1
B
D
A
1
9
1
B
D
A
1
9
1
B
Figure 2-2
Example of a Three-Site System Using Drop and Insert
2.6 Compatibility With Earlier DA-191 Module Versions
The DA-191B is compatible with all earlier DA-191, DA-191A, and DA-191E versions.
However, DA-191 and DA-191E modules can use only one time slot, and can operate in only two
modes: one channel with a maximum rate of 19.2 kbps, or two channels with a maximum rate of
9.6 kbps per channel. DA-191A modules have a maximum rate of 19.2 kbps, and can use a
minimum rate of 4.8 kbps, which the DA-191B cannot.

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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To establish a circuit with a DA-191B at one end and a DA-191, DA-191E, or DA-191A at the
far end, configure the DA-191B to match the settings of the older module.
In a system with two DA-191 or DA-191E modules at the far end, a single DA-191B module may
be set to use two time slots and establish circuits with both of them.
2.7 Controls and Indicators
The DA-191B has three sets of switches and three LED indicators, as shown on Figures 2-2 and
2-3. The functions of these switches and indicators are described in the following tables.
1
2
3
4
5
6
1
2
3
4
5
6
7
8
TX IN LED
SERVICE
LED
DA-191B
RX OUT LED
CAS
T1
LOOP
TERM
REMOTE
OFF
MODE
RATE 0
RATE 1
TIME SLOT
SELECT
Figure 2-3
DA-191B Data Module, Front View

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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DATA
IN
SRVC
RATE 1 RATE 0
MODE
TIME
SLOT
SELECT
S2S1
S3
1 2
ON
3 4 5 6
SCB
ADDRESS
DATA
OUT
IMPORTANT!!!
All modules must be inserted
so that the white eject tab
is at the bottom in a full size
(5 1/4" high) shelf, and at the
right in a compact (1 3/4" high)
shelf.
CAS
T1
LOOP
TERM
REMOTE
OFF
Figure 2-4
DA-191B Data Module, Top View

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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Table 2-2
LED Indicators
LED
Identifier Color Description
DATA IN Green On when one or more channel is transmitting data.
DATA OUT Green On when one or more channel is receiving data.
SRVC Green On when the module is active.
2.7.1 Configuring the Data Ports
The two RATE switches set the maximum data rate for the card, and the MODE switch sets the
number of active time slots. These three switches work together to configure the type and number
of active data ports, as shown on Table 2-3.
Table 2-3
Data Port Configuration — S1, Positions 1 - 3
Switch Settings Maximum Activates No. Of Restricted E1
RATE 1 RATE 0 MODE Data Rate Port Nos. Time Slots Time Slots
UP DOWN DOWN 38.4 kbps 1 2 15, 16
UP DOWN UP 38.4 kbps 1 and 2 4 13 – 16
UP UP DOWN 38.4 kbps 1 to 4 8 9 – 16
DOWN DOWN DOWN 19.2 kbps 1 1 16
DOWN DOWN UP 19.2 kbps 1 and 2 2 15, 16
UP UP UP 19.2 kbps 1 to 4 4 13 – 16
DOWN UP DOWN 9.6 kbps 1 and 2 1 16
DOWN UP UP 9.6 kbps 1 to 4 2 15, 16
2.7.2 Time Slot Selection
The five TIME SLOT SELECT switches set the starting time slot on the T1 or E1 circuit in
which the DA-191B module places its data (see Table 2-4).
IMPORTANT: In an E1 multiplexer set to use CAS signaling, do not use time slot 16 (time slot
16 is reserved for signaling). If the time slot selection would require the use of time slot 16, the
card will turn its service off, and it will not operate until the time slot setting is changed.

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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Table 2-4
Time Slot Selection — S1, Positions 4 - 8
This table lists the first time slot used for data. The number of time slots used depends on the
selected rate and mode (see Table 2-3).
Starting Time Slot in a T1
Multiplexer Starting Time Slot in an E1 Multiplexer Switch S1, Positions* 4 5 6 7 8
1
U U U U U
2
1
U U U U D
3 2
U U U D U
4
3
U U U D D
5 4
U U D U U
6
5
U U D U D
7 6
U U D D U
8
7
U U D D D
9 8
U D U U U
10
9
U D U U D
11 10
U D U D U
12
11
U D U D D
13 12
U D D U U
14
13
U D D U D
15 14
U D D D U
16
15
U D D D D
17 16
†
D U U U U
18
17
D U U U D
19 18
D U U D U
20
19
D U U D D
21 20
D U D U U
22
21
D U D U D
23 22
D U D D U
24
23
D U D D D
24
D D U U U
25
D D U U D
26
D D U D U
27
D D U D D
28
D D D U U
29
D D D U D
30
D D D D U
31
D D D D D
* U = Up, D = Down
† Do not activate time slot 16 in an E1 multiplexer with CAS signaling turned on. The card
will not operate (service will turn off).
2.7.3 Other Configuration Options
Switch bank S2 contains six configuration switches, as listed in Table 2-5.

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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Table 2-5
Configuration Switches - S2
Switch Setting Description
CAS UP
DOWN
Normal
Reserve time slot 16 for CAS signaling
This switch is active only when the card is set to operate in an E1
multiplexer
T1 UP
DOWN
Sets the module to operate in an E1 (2 Mbps) multiplexer
Sets the module to operate in a T1 multiplexer
LOOP UP
DOWN
Normal - loopback off
Activates data loopback - receive data is looped back to transmit input (all
channels)
TERM UP
DOWN
Sets the module to operate via the DI-B port in a drop/insert multiplexer (see
Section 2.5).
Sets the module to operate in a terminal multiplexer, or via the DI-A port in a
drop/insert multiplexer.
REMOTE UP
DOWN
Sets module for local control
Sets module for remote control
OFF UP
DOWN
Normal operation - module is active
Turns service off
2.6 Remote Control Interface
DA-191B modules installed in an Intraplex remote controllable shelf can be used under local or
remote control. When under remote control, certain configuration parameters can be changed
only via the RS-232 remote port on the multiplexer. See the multiplexer operation manual for
details on using ISiCL, the Intraplex Simple Command Language.
Before the module can receive remote commands, it must first be assigned a card address. The
card address is used to route remote commands and queries to a specific module in a multiplexer.
In a full size shelf, it is generally set to the physical slot number the card occupies. It may be set
to any number from 1 to 36 which is not in use by another card in the same multiplexer.
The card address is determined by the SCB ADDRESS switch bank (S3) settings, as shown in
Table 2-6.

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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Table 2-6
Card Address Setting - S3
Card
Address
Switch Settings:*
S3, Positions
1 2 3 4 5 6
Card
Address
Switch Settings:*
S3, Positions
1 2 3 4 5 6
1 0 0 0 0 0 1 19 0 1 0 0 1 1
2
000010
20
010100
3 0 0 0 0 1 1 21 0 1 0 1 0 1
4 0 0 0 1 0 0 22 0 1 0 1 1 0
5 0 0 0 1 0 1 23 0 1 0 1 1 1
6 0 0 0 1 1 0 24 0 1 1 0 0 0
7 0 0 0 1 1 1 25 0 1 1 0 0 1
8
001000
26
011010
9 0 0 1 0 0 1 27 0 1 1 0 1 1
10 0 0 1 0 1 0 28 0 1 1 1 0 0
11 0 0 1 0 1 1 29 0 1 1 1 0 1
12 0 0 1 1 0 0 30 0 1 1 1 1 0
13 0 0 1 1 0 1 31 0 1 1 1 1 1
14
001110
32
100000
15
001111
33
100001
16 0 1 0 0 0 0 34 1 0 0 0 1 0
17 0 1 0 0 0 1 35 1 0 0 0 1 1
18 0 1 0 0 1 0 36 1 0 0 1 0 0
* 0 = OFF, 1 = ON
The DA-191B reports itself as a TYPE 115 card. Its remote operation involves two sets of codes:
“P” (parameter) codes, and “S” (status) codes, as described in the following two sections.
2.6.1 P Codes
P codes, when used in the parameter field of an ISiCL SET command, allow the user to set
parameters on the module via remote control, just like setting the switches on a module under
local control.
The two P codes for the DA-191B are P1 and P2. Each is a number from 0 to 255, also
represented as an eight-digit binary number (in parentheses). The binary representation is more
useful for setting and interpreting the P codes, because each binary digit (0 or 1) corresponds to
the on or off setting for a particular switch on the module. (Only twelve of these sixteen digits
correspond to switches; the other four are not used). Table 2-7 describes the meanings of the P
codes.

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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P codes also appear in the response to a CONFIG? query, showing the current parameter settings
on the card.
A typical DA-191B response to a CONFIG? query looks like this:
* OK
CHANNEL CARD 3, TYPE 115
UNDER REMOTE CONTROL
SRVC = ON
P01 = 35 (B00100011)
P02 = 8 (B00001000);
In this sample response, the P codes signify the following:
P1 Module is set to operate with four active ports, maximum data rate 9.6 kbps per port,
to use two time slots, starting at time slot #3
P2 Module is set to communicate via the DI-A (TERM) port in a drop/insert multiplexer,
the data loopback is off, multiplexer type is E1, and CAS is off (time slot 16 not
reserved)
IMPORTANT: When using binary numbers in the parameter field of a SET command, they must
be preceded by the letter “B”, as for example:
<MULTIPLEXER ADDRESS>:<CARD ADDRESS>:SET:P02 = B00000011;
In addition to the P codes, it is also possible to turn service on or off for the card by sending
SRVC = ON or SRVC = OFF in the ISiCL parameter field with a SET command.

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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Table 2-7
Remote Configuration Settings (P Codes)
P
Code Digit(s) and
Switch Equivalent
Value1 Description
P1
B000
00000
---↑↑↑↑↑
TIME SLOT
SELECT
These five digits set the desired time slot(s).
See Table 2-8 for a list of possible settings.
B00
0
00000
--
↑
-----
RATE 1
B0
0
000000
-↑------
RATE 0
These three digits together configure the data ports (number of active
ports, data rate and time slot usage) for the module.
B
0
0000000
↑-------
MODE
See Table 2-9 for a list of possible settings.
P2
B0000000
0
-------↑
CAS
0
1
Normal
Reserve time slot 16 for CAS signaling (in an E1
multiplexer only).
B000000
0
0
------↑-
T1
0
1
Sets the module to operate in an E1 (2 Mbps) multiplexer.
Sets the module to operate in a T1 multiplexer.
B00000
0
00
-----↑-- LOOP 0
1
Normal - loopback off.
Loopback active; receive data is looped back to transmit
input (all channels).
B0000
0
000
----↑--- TERM 0
1
Sets the module to operate via the DI-B port in a
drop/insert multiplexer (see Section 2.5).
Sets the module to operate in a terminal multiplexer, or via
the DI-A port in a drop/insert multiplexer.
B
0000
0000
↑↑↑↑
----
0 Not used.
1 These are the only legal values for setting the parameters. Setting any parameter to a
value outside its specified range will produce an unpredictable result.

GatesAir DA-191B Four-Port Asynchronous Data Module
Intraplex Products Version 1
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Table 2-8
Time Slot Selection Via Remote Access
This table lists the first time slot used for data. The number of time slots used depends on the selected rate
and mode (see Table 2-9).
Starting
Time Slot (s) P1 Settings for Time
Slot Select
1
Bxxx00001
2
Bxxx00010
3
Bxxx00011
4
Bxxx00100
5
Bxxx00101
6
Bxxx00110
7
Bxxx00111
8
Bxxx01000
9
Bxxx01001
10
Bxxx01010
11
Bxxx01011
12
Bxxx01100
13
Bxxx01101
14
Bxxx01110
15
Bxxx01111
16
Bxxx10000
17
Bxxx10001
18
Bxxx10010
19
Bxxx10011
20
Bxxx10100
21
Bxxx10101
22
Bxxx10110
23
Bxxx10111
24
Bxxx11000
25
Bxxx11001
26
Bxxx11010
27
Bxxx11011
28
Bxxx11100
29
Bxxx11101
30
Bxxx11110
31
Bxxx11111
† Do not activate time slot 16 in an E1 multiplexer with CAS signaling turned on. The card
will not operate (service will turn off).