GatesAir Intraplex VF-25 User manual

Intraplex® VF-25
Four-Port PCM E&M Voice Module
VF-25 Voice Frequency Module
MA-305C, MA-306C, MA-308C, MA-309C, & MA-310 Module Adapters
Version 7.1
Installation and Operation Manual


Publication Information
©2014 GatesAir, Inc. . Proprietary and Confidential.
GatesAir considers this document and its contents to be proprietary and confidential. Except for making a
reasonable number of copies for your own internal use, you may not reproduce this publication, or any part
thereof, in any form, by any method, for any purpose, or in any language other than English without the written
consent of GatesAir. All others uses are illegal.
This publication is designed to assist in the use of the product as it exists on the date of publication of this manual,
and may not reflect the product at the current time or an unknown time in the future. This publication does not in
any way warrant description accuracy or guarantee the use for the product to which it refers.
GatesAir reserves the right, without notice to make such changes in equipment, design, specifications,
components, or documentation as progress may warrant to improve the performance of the product.
GatesAir reserves the right, without notice to make such changes in equipment, design, specifications,
components, or documentation as progress may warrant to improve the performance of the product.
Trademarks
AudioLink PLUS™, HD Link™, IntraGuide®, Intraplex®, NetXpress™, NetXpress LX™, STL PLUS®, SynchroCast®, and
SynchroCast3™ are trademarks of GatesAir Corporation. Other trademarks are the property of their respective
owners.
Customer Service Contact Information
www.gatesair.com
GatesAir
3200 Wismann Lane
Quincy, Il 62305 USA
For Technical Support including Service, Training, Repair and Service Parts:
www.gatesair.com/services/technical-support.aspx
Americas:
24/7 Technical Support +1 217 222 8200
Europe, Middle East and Africa:
24/7 Technical Support +1 217 222 8200
Asia:
24/7 Technical Support +1 217 222 8200

Version
Date
Revision History
Section
Pages
Editor
7
3/31/09
Put manual into new format. Updated appendix for new module
adapters, dividing appendix into current and discontinued MAs.
All
All
LD
7.1
11/03/09
Changed “EB Lead” to “SG Lead” in two occurrences.
2.2
2-1
LD

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Intraplex Products
Table of Contents
Section 1 –Introduction................................................................ 1-1
Section 2 –Functional Description & Setup ................................... 2-1
2.1 Transmit Side .................................................................................. 2-1
2.2 Receive Side.................................................................................... 2-1
2.3 E&M Signaling ................................................................................. 2-3
2.4 Alerts/Alarms .................................................................................. 2-3
2.5 Loopbacks....................................................................................... 2-3
2.6 Drop/Insert Operation ...................................................................... 2-4
2.7 Controls and Indicators..................................................................... 2-4
2.8 Remote Control Interface .................................................................. 2-7
2.8.1 P Codes ................................................................................................2-8
2.8.2 S Codes..............................................................................................2-12
Section 3 –Installation ................................................................. 3-1
3.1 Inspection ....................................................................................... 3-1
3.2 Configuration................................................................................... 3-1
3.3 Mounting......................................................................................... 3-2
Section 4 –Testing & Troubleshooting .......................................... 4-1
4.1 Local versus Remote Loopback .......................................................... 4-1
4.2 VF-25 Loopback Setup Procedure ....................................................... 4-1
Section 5 –Specifications.............................................................. 5-1
5.1 Detailed Specifications ...................................................................... 5-1
5.2 Notice of FCC Compliance.................................................................. 5-2
Appendix A –Module Adapters for VF-25 Voice Module................. A-1
A.1 Current Module Adapters...................................................................A-1
A.1.1 MA-305 Four-wire, 50-pin Connector....................................................... A-1
A.1.2 MA-305C Four-Wire, 50-pin Connector .................................................... A-2
A.1.3 MA-306C Four-Wire, RJ-45 Connector ..................................................... A-4
A.1.4 MA-308C Four-Wire, RJ-45 Connector ..................................................... A-7
A.1.5 MA-309C Two-Wire, 50-pin Connector....................................................A-11
A.1.6 MA-310 Two-Wire, RJ-45 Connector.......................................................A-16
A.2 Discontinued Module Adapters ......................................................... A-22
A.2.1 MA-305B Four-wire, 50-pin Connector....................................................A-22
A.2.2 MA-306 Four-Wire, RJ-45 Connector ......................................................A-23
A.2.3 MA-308 Four-Wire, RJ-45 Connector ......................................................A-26

Intraplex VF-25 Voice Module Table of Contents
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A.2.4 MA-308B Four-Wire, RJ-45 Connector ....................................................A-29
A.2.5 MA-309 Two-Wire, 50-pin Connector......................................................A-34
Figures
Figure 2-1. VF-25 Voice Module, Block Diagram ........................................................................ 2-2
Figure 2-2. E&M Signaling Types............................................................................................. 2-3
Figure 2-3. Three-Site System Using Drop/Insert...................................................................... 2-4
Figure 2-4. VF-25 Voice Module, Front View ............................................................................. 2-4
Figure 2-5. VF-25 Voice Module, Top View................................................................................ 2-5
Figure 2-6. Attenuation Level Controls (P3 –P10) ................................................................... 2-11
Figure 4-1: VF-25 Loopbacks.................................................................................................. 4-1
Figure A-1. MA-305 Jumper Settings and Face Plate .................................................................. A-2
Figure A-2. MA-305C Jumper Settings and Face Plate ................................................................ A-3
Figure A-3. MA-306 Jumpers and Face Plate ............................................................................. A-4
Figure A-4. MA-306C Pin Assignments ..................................................................................... A-6
Figure A-5. MA-308C Jumpers and Face Plate ........................................................................... A-8
Figure A-6. MA-308C Pin Assignments ..................................................................................... A-9
Figure A-7. MA-309C Jumpers and Face Plate ......................................................................... A-11
Figure A-8. MA-309C Jumper Settings for Signaling Type Selection ........................................... A-12
Figure A-9. MA-309C Jumper Settings for Attenuation Control .................................................. A-14
Figure A-10. MA-310 Jumpers and Face Plate ......................................................................... A-16
Figure A-11. MA-310 Jumper Settings for Signaling Type Selection ........................................... A-17
Figure A-12. MA-310 Pin Assignments ................................................................................... A-18
Figure A-13. MA-310 Jumper Settings for Attenuation Control .................................................. A-19
Figure A-14. MA-305B Jumper Settings and Face Plate ............................................................ A-22
Figure A-15. MA-306 Jumpers and Face Plate ......................................................................... A-23
Figure A-16. MA-306 Pin Assignments ................................................................................... A-25
Figure A-17. MA-308 Jumpers and Face Plate ......................................................................... A-26
Figure A-18. MA-308 Pin Assignments ................................................................................... A-28
Figure A-19. MA-308B Jumpers and Face Plate ....................................................................... A-30
Figure A-20. MA-308B Pin Assignments ................................................................................. A-32
Figure A-21. MA-309 Jumpers and Face Plate ......................................................................... A-34
Figure A-22. MA-309 Jumper Settings for Signaling Type Selection ........................................... A-35
Figure A-23. MA-309 Jumper Settings for Attenuation Control .................................................. A-37
Tables
Table 2-1. Configuration Switches ........................................................................................... 2-6
Table 2-2. Active Channel Selection –SW2, Positions 2 & 3........................................................ 2-6
Table 2-3. Input/Output Level Jumper Settings......................................................................... 2-6
Table 2-4. Starting Time Slot Selection –SW1, Positions 1-5...................................................... 2-7
Table 2-5. Card Address Setting –SW3 ................................................................................... 2-8
Table 2-6. Remote Configuration Settings (P Codes).................................................................. 2-9
Table 2-7. Starting Time Slot Selection by Remote Access........................................................ 2-10
Table 2-8. Suggested P Codes to Achieve Desired dB Gain ....................................................... 2-12

Table of Contents Intraplex VF-25 Voice Module
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Table 2-9. Remote Status Messages (S Codes) ....................................................................... 2-13
Table 3.1 Sample VF-25 Response To A CONFIG? Query ............................................................ 3-2
Table A-1. Module Adapters for VF-25 Module........................................................................... A-1
Table A-2. MA-305 Pin Assignments ........................................................................................ A-1
Table A-3. MA-305C Pin Assignments ...................................................................................... A-3
Table A-4. MA-306C Channel 1 Jumper Settings ....................................................................... A-5
Table A-5. MA-306C Channel 2 Jumper Settings ....................................................................... A-5
Table A-6. MA-306C Channel 3 Jumper Settings ....................................................................... A-5
Table A-7. MA-306C Channel 4 Jumper Settings ....................................................................... A-6
Table A-8. MA-306C Pin Assignments ...................................................................................... A-6
Table A-9. MA-308C Alternate Jumper Settings......................................................................... A-8
Table A-10. MA-308C Alternate Jumper Settings ....................................................................... A-9
Table A-11. MA-308C Pin Assignments................................................................................... A-10
Table A-12. MA-308C Attenuator Switch Settings .................................................................... A-10
Table A-13. Selectable Attenuation Control for Nominal Input Level of 0dBm.............................. A-13
Table A-14. Selectable Attenuation Control for Nominal Input Levels of -16 & 0 dBm................... A-13
Table A-15. MA-309C Pin Assignments................................................................................... A-13
Table A-16. Selectable Attenuation Control for Nominal Input Level of 0dBm .............................. A-14
Table A-17. Selectable Attenuation Control for Nominal Input Levels of -16 & 0 dBm................... A-15
Table A-18. MA-309C Technical Specifications ........................................................................ A-15
Table A-19. Selectable Attenuation Control for Nominal Input Level of 0dBm .............................. A-18
Table A-20. Selectable Attenuation Control for Nominal Input Levels of –16 & 0 dBm .................. A-18
Table A-21. MA-310 Pin Assignments .................................................................................... A-19
Table A-22. Selectable Attenuation Control for Nominal Input Level of 0dBm .............................. A-20
Table A-23. Selectable Attenuation Control for Nominal Input Levels of -16 dBm & 0 dBm ........... A-20
Table A-24. MA-310 Technical Specifications .......................................................................... A-21
Table A-25. MA-305B Pin Assignments................................................................................... A-22
Table A-26. MA-306 Channel 1 Jumper Settings...................................................................... A-24
Table A-27. MA-306 Channel 2 Jumper Settings...................................................................... A-24
Table A-28. MA-306 Channel 3 Jumper Settings...................................................................... A-24
Table A-29. MA-306 Channel 4 Jumper Settings...................................................................... A-25
Table A-30. MA-306 Pin Assignments .................................................................................... A-25
Table A-31. MA-308 Alternate Jumper Settings ....................................................................... A-27
Table A-32. MA-308 Alternate Jumper Settings ....................................................................... A-27
Table A-33. MA-308 Pin Assignments .................................................................................... A-28
Table A-34. MA-308 Switch Settings...................................................................................... A-29
Table A-35. MA-308B Channel 1 Alternate Jumper Settings ...................................................... A-31
Table A-36. MA-308B Channel 2 Alternate Jumper Settings ...................................................... A-31
Table A-37. MA-308B Channel 3 Alternate Jumper Settings ...................................................... A-31
Table A-38. MA-308B Channel 5 Alternate Jumper Settings ...................................................... A-32
Table A-39. MA-308B Pin Assignments................................................................................... A-33
Table A-40. MA-308B Attenuator Switch Settings .................................................................... A-33
Table A-41. Selectable Attenuation Control for Nominal Input Level of 0dBm .............................. A-36
Table A-42. Selectable Attenuation Control for Nominal Input Levels of –16 dBm & 0 dBm........... A-36
Table A-43. MA-309 Pin Assignments .................................................................................... A-36
Table A-44. Selectable Attenuation Control for Nominal Input Level of 0dBm.............................. A-38

Intraplex VF-25 Voice Module Table of Contents
Version 7.1, November 2009
iv GatesAir, Inc.
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Table A-45. Selectable Attenuation Control for Nominal Input Levels of -16 dBm & 0 dBm ........... A-38
Table A-46. MA-309 Technical Specifications .......................................................................... A-39

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Intraplex Products
Section 1 –Introduction
This manual describes the setup and installation procedures for the Intraplex VF-25 Voice Frequency
Module. Experienced users may refer directly to the Section 2 tables for configuration data. Your
Intraplex multiplexer operation manual contains additional information about this system.
The VF-25 four-port voice frequency module is designed to use in the Intraplex terminal and
drop/insert multiplexers and other Intraplex communications products. The voice interface is full
duplex, two-wire or four-wire E&M with PCM coding, allowing four voice channels to be carried in four
64 kbps time slots on T1 and other digital communications facilities.
Each VF-25 module provides high quality voice characteristics compatible with AT&T Pub. 43801 and
supports E & M signaling Types I, II, III, and V. It has extended-range input and output signal level
adjustments to facilitate interfaces in most two-wire or four-wire applications. VF-25 voice module
features include
●One to four independent channels may be active simultaneously.
●Remote control configuration and status reporting.
●Selectable signaling format (Type I, II, III, or V).
●Selectable transmit/receive direction for use in drop/insert systems.
●Input/output attenuation adjustment.


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Section 2 –Functional Description & Setup
This section’s descriptions refer to one channel; each of the four channels on this module operates
identically. Figure 2-1 shows a simplified block diagram of the VF-25 module.
2.1 Transmit Side
Voice input goes through the module adapter at the rear of the shelf. The input signal goes to a
balanced input transformer. The transformer output goes to an amplifier stage and then passes
through an electronic level control, which allows the input level to be adjusted up or down from the
nominal setting in <0.5 dB increments. The normal factory-set input level is 0 dBm, referenced to 600
ohms, and clipping begins at input level of +3.0 dBm. Jumpers on the module allow the nominal input
level to be set to -16 dBm. The control output then passes to the PCM CODEC, which converts it to an
eight-bit digital signal using µ-law coding.
The M-Lead Detector responds to an IDLE or BUSY signal from the external device. For Types I, II,
and III signaling, a level of -48 volts at the M Lead equals BUSY, ground equals IDLE. For Type V
signaling, ground at the M Lead equals BUSY, open equals IDLE. The M-Lead input impedance is
greater than 20K Ohms.
The Field Programmable Gate Array (FPGA) multiplexes the M-Lead signal together with the eight-bit
output of the PCM encoder and places the resulting bitstream into the user-selectable time slot on the
backplane for transmission in the desired direction. Each channel occupies one time slot; you select
the time slot for Channel 1, and each additional active channel occupies the next sequential time slot.
2.2 Receive Side
The FPGA gets the input signal from the appropriate time slot on the backplane and demultiplexes it.
The E-Lead signal goes to the E Lead driver. When active in Type I, III, and V signaling modes, ground
equals BUSY; open equals IDLE. In Type II signaling, the E-Lead and SG-Lead are both used. When
signaling is active, the E-Lead and SG-Lead are tied together through the E-Lead relay.

Intraplex VF-25 Voice Module 2 –Functional Description & Setup
Version 7.1, November 2009
2-2 GatesAir, Inc.
Intraplex Products
TDM Bus
Serial Control Bus
Drivers & Receivers
FPGA
PCM
CODEC
Level
Control
Input
Xformer
Output
Xformer
Local
Loopback
Remote
Loopback
1
2
3
4
5
6
SET SCB
ADDRESS
TERM
TS1
TS0
SIG OFF
REMOTE
SERVICE
1
2
3
4
5
6
1
2
3
4
5
6AUX (LOCAL
LOOPBACK)
SELECT
TIME SLOT
Channel 1 Chan. 2 Chan. 3 Chan. 4
M Lead
Detect
M Input
SB
E Lead
Driver
E Output
SG
Select Type
I, II, III, or V
VF-25 ModuleModule Adapter
Figure 2-1. VF-25 Voice Module, Block Diagram
The PCM CODEC converts the eight-bit digital signal back to an analog audio signal and passes it to an
electronic level control, which allows the output level to be adjusted up or down in <0.5 dB
increments.

2 –Functional Description & Setup Intraplex VF-25 Voice Module
Version 7.1, November 2009
GatesAir, Inc. 2-3
Intraplex Products
The control output passes to an amplifier stage and finally through the output transformer to the
output connectors on the module adapter. With 0 dBm at the transmitter input, the output level is 0
dBm referenced to 600 ohms. Jumpers on the module allow the nominal output level to be set to +7
dBm.
2.3 E&M Signaling
The VF-25 module supports E&M signaling Types I, II, III, and V and can also operate in Transmission
Only mode with signaling turned off. When operated in the Transmission Only mode, signaling is
disabled in all active channels. Settings on the module adapter (Appendix A) select the E&M signaling
type. Figure 2-2 provides simplified block diagrams of these four signaling types.
Figure 2-2. E&M Signaling Types
2.4 Alerts/Alarms
The VF-25 module reports no module-level ALERT or ALARM signals to the shelf common module.
2.5 Loopbacks
The VF-25 module provides two loopback types:
1. Local loopback of all four channels, used for testing the operation of the module during initial
installation
2. Remote loopback of each channel individually, used when troubleshooting channel problems

Intraplex VF-25 Voice Module 2 –Functional Description & Setup
Version 7.1, November 2009
2-4 GatesAir, Inc.
Intraplex Products
Figure 2-1 shows these loopback locations. Section 4 - “Testing and Troubleshooting” gives procedures
for using these loopbacks.
2.6 Drop/Insert Operation
A drop/insert multiplexer operates at a central point on a three (or more) point system. In Figure 2-3,
Site 2 has a drop/insert multiplexer with a DI/A port connected to the transmission line to Site 1 and a
DI/B port 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/insert multiplexer at Site 2, a VF-25 module can be set to transmit and receive
either through the DI-A port (toward Site 1) or the DI-B port (toward Site 3) but not both.
When a VF-25 module 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/insert multiplexer (Site 2) the TERM switch setting
must be DOWN to transmit or receive through the DI/A port (toward Site 1) and UP to transmit or
receive through the DI/B port (toward Site 3).
Site 2
Drop/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
D/I
A
D/I
B
Site 1
Terminal
Multiplexer
To/From
Site 2
(TERM
Switch
DOWN)
T1 or
Aggregate
Circuit
To/From
Site 3
(TERM
Switch
DOWN)
To/From
Site 1
(TERM
Switch
DOWN)
To/From
Site 2
(TERM
Switch
DOWN)
V
F
2
5
V
F
2
5
V
F
2
5
V
F
2
5
V
F
2
5
V
F
2
5
T1 or
Aggregate
Circuit
Figure 2-3. Three-Site System Using Drop/Insert
2.7 Controls and Indicators
The VF-25 module has three switch banks, eight jumpers, and one green indicator light (Figures 2-4
and 2-5). The light indicates Service On; when it is on, the module is in service. Tables 2-1 through 2-
5 describe the meaning and usage of the switches and jumpers on the module.
1 2 3 4 5 6
SERVICE
LIGHT
TIME SLOT
SELECT
SRVC ON/OFF
LOCAL/REMOTE
TERMINAL
LOCAL LOOPBACK
1 2 3 4 5 6 VF-25
TS1
TS0
SIG OFF
Figure 2-4. VF-25 Voice Module, Front View

2 –Functional Description & Setup Intraplex VF-25 Voice Module
Version 7.1, November 2009
GatesAir, Inc. 2-5
Intraplex Products
SRVC
S3 1 2
ON
3 4 5 6
SCB
ADDRESS
1
23456
OPEN
AUX
TIME
SLOT
SELECT
1
2 3
456
OPEN
S2
S1
TERM
TS1
TS0
SIG OFF
REMOTE
SRVC
MSB
LSB
JMP1 0dBm
JMP2 0dBm
JMP3 0dBm
JMP4 0dBm
JMP5 0dBm
JMP6 0dBm
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.
JMP7 0dBm
JMP8 0dBm
Figure 2-5. VF-25 Voice Module, Top View

Intraplex VF-25 Voice Module 2 –Functional Description & Setup
Version 7.1, November 2009
2-6 GatesAir, Inc.
Intraplex Products
Table 2-1. Configuration Switches
Switch#/
Position
Label
Setting
Description
SW1/1 - 5
TIME SLOT
SELECT
Table 2-4
Select the desired starting time slot.
SW1/6
AUX
UP
DOWN
NORMAL: Local loopback off
Activate local loopback.
SW2/1
TERM
UP
DOWN
Set the module to communicate through the DI-B port in a
drop/insert multiplexer (Section 2.5 - Drop/Insert
Operation).
Set the module for use in a terminal multiplexer or to
communicate through the DI-A port in a drop/insert
multiplexer.
SW2/2 & 3
TS1, TS0
Table 2-2
Select the number of active channels (1 to 4).
SW2/4
SIG OFF
UP
DOWN
NORMAL: Signaling is active.
Signaling off (Transmission Only mode)
SW2/5
REMOTE
UP
DOWN
Set module for local control.
Set module for remote control.
SW2/6
OFF
UP
DOWN
NORMAL: Module is in service.
Take the module out of service.
SW3/1 - 6
SCB ADDRESS
Table 2-5
Set the remote access address for the module.
Table 2-2. Active Channel Selection –SW2, Positions 2 & 3
Switch Settings
Channels Active
TS1
TS0
UP
UP
Four channels active (channels 1 - 4)
UP
DOWN
Three channels active (channels 1 - 3)
DOWN
UP
Two channels active (channels 1 - 2)
DOWN
DOWN
One channel active (channel 1 only)
Table 2-3. Input/Output Level Jumper Settings
0 d B m
= Normal Position
0 d B m
= Reversed Position
Jumper
Description
JMP1
Ch. 1 Tx input level: Normal = 0 dBm, Reversed = -16 dBm
JMP2
Ch. 1 Rx output level: Normal = 0 dBm, Reversed = +7 dBm
JMP3
Ch. 2 Tx input level: Normal = 0 dBm, Reversed = -16 dBm
JMP4
Ch. 2 Rx output level: Normal = 0 dBm, Reversed = +7 dBm
JMP5
Ch. 3 Tx input level: Normal = 0 dBm, Reversed = -16 dBm
JMP6
Ch. 3 Rx output level: Normal = 0 dBm, Reversed = +7 dBm
JMP7
Ch. 4 Tx input level: Normal = 0 dBm, Reversed = -16 dBm
JMP8
Ch. 4 Rx output level: Normal = 0 dBm, Reversed = +7 dBm

2 –Functional Description & Setup Intraplex VF-25 Voice Module
Version 7.1, November 2009
GatesAir, Inc. 2-7
Intraplex Products
Table 2-4. Starting Time Slot Selection –SW1, Positions 1-5
Time
Slot*
Positions**
1 2 3 4 5
Time
Slot*
Positions**
1 2 3 4 5
1
U U U U U
13
U D D U U
2
U U U U D
14
U D D U D
3
U U U D U
15
U D D D U
4
U U U D D
16
U D D D D
5
U U D U U
17
D U U U U
6
U U D U D
18
D U U U D
7
U U D D U
19
D U U D U
8
U U D D D
20
D U U D D
9
U D U U U
21
D U D U U
10
U D U U D
22
D U D U D
11
U D U D U
23
D U D D U
12
U D U D D
24
only
D U D D D
* Each active channel on the VF-25 module requires one time slot. The settings shown here select
the first time slot; one to four consecutive time slots are used, depending on the number of active
channels. For example, with all four channels active, selecting starting time slot 3 means this
module would use time slots 3, 4, 5, and 6. Accordingly, starting time slots 22, 23, or 24 may be
used only when fewer than four channels are active.
** U = UP, D = DOWN
2.8 Remote Control Interface
VF-25 modules can be used under local or remote control. When under remote control, you can only
change certain configuration parameters by the RS 232 remote port on the multiplexer. The
multiplexer operation manual gives 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 with the
Serial Control Bus (SCB). 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 (SW3) settings (Table
2-5).

Intraplex VF-25 Voice Module 2 –Functional Description & Setup
Version 7.1, November 2009
2-8 GatesAir, Inc.
Intraplex Products
Table 2-5. Card Address Setting –SW3
Time
Slot
Positions*
1 2 3 4 5 6
Time
Slot
Positions*
1 2 3 4 5 6
1
0 0 0 0 0 1
19
0 1 0 0 1 1
2
0 0 0 0 1 0
20
0 1 0 1 0 0
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
0 0 1 0 0 0
26
0 1 1 0 1 0
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
0 0 1 1 1 0
32
1 0 0 0 0 0
15
0 0 1 1 1 1
33
1 0 0 0 0 1
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 VF-25 module reports itself as a TYPE 103 module. Its remote operation involves the use of “P”
(parameter) codes and “S” (status) codes, as Sections 2.8.1 and 2.8.2 describe.
2.8.1 P Codes
P codes, when used in the parameter field of a SET command, allow you to set parameters on the
module by remote control, just like setting the switches on a module under local control. There are ten
P codes for the VF-25 module, P1 through P10. Each is a number from 0 to 255, also represented as
an eight-digit binary number (in parentheses). The first two P codes, P1 and P2, provide remote
access to the settings controlled by the dip switches on the module itself, as well as allowing activation
of the remote loopback feature. The remaining eight codes, P3 through P10, are used to change the
input and output level settings for each of the four voice channels on the module. Table 2-6 describes
the meanings of the P codes in detail. P codes also appear in the response to a CONFIG? query,
showing the current parameter settings on the module.
Note: When using binary numbers in the parameter field of a SET command, the numbers must be
preceded by the letter “B”, for example:
<MULTIPLEXER ADDRESS>:<CARD ADDRESS>:SET:P02 = B00000001;
In addition to the P codes, you can turn service on or off for the module by sending SRVC = ON or
SRVC = OFF in the ISiCL parameter field with a SET command.
Table of contents
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