Procom S0 Attachment User Manual
Data Sheet
S0 Attachment
S0 Attachment for 4FTR and LCPU
The S0 attachment is used to connect the DVS-21 to ISDN telephone systems and is
conceived for live public address (coming and going).
The S0 attachment can only be used in combination with the carrier card 4FTR or the
LCPU. The 4FTR can accept up to four attachments and the LCPU one attachment.
E1, S0 and UART attachments can be freely combined on the 4FTR.
At a Glance:
• Remote (live) public address system on e.g. train platforms
• Storing of up to 16 call numbers for incoming calls
⇒ Authentication and prioritizing of the 16 callers using
call identification (CLIP)
• Storing of up to 32 call numbers for outgoing calls
• Automatic calling of a service number when a malfunction
occurs in the system
⇒ Provides error message from audio databank
• Acknowledge audio signals to
⇒ Signal readiness for speaking
⇒ Signal successful announcement (positive
acknowledgement)
⇒ Signal error message (negative acknowledgement)
Date
Fig. 1: Front side S0 attachment Fig. 2: Rear side S0 attachment
(L- No. 2.870)
20.08.2008
Page:
1/10
© 2008 ProCom, All rights and technical changes reserved
Author: HS Document-No.:
S0_DB_2870_01
Data Sheet
B
S0 Attachment
S0 Attachment for 4FTR and LCPU
The following block diagram illustrates the way the S0 attachment for 4FTR or LCPU
functions.
S0- Aufsatz
S0-Attachment
LED1 LED2
Tx
S0
R
indication 4FTR
indication 4FTR
indication 4FTR
indication 4FTR
S0-
Modul
x
Display
Digital Upload
IOM2
Digital Download
UART
RST
µ- Prozessor
DU
DD
FRM
CLK
8k
Slip
Buffer
F
P
G
A
10MHz
Digital Input
PCM32
Digital Output
UART
RST
STI
STO
FRM
CLK
4FTR
B
u
s
C
P
U
P
C
M
BUS
lock diagram for S0 attachment
The FPGA regulates the S0 flow of data between the S0 attachment and the
BusCPU on the 4FTR or LCPU. Here the BusCPU is the interface to the DVS-21 and
the S0 attachment the interface to the outside world.
The microprocessor controls the other functions such as e.g. LEDs on the 4FTR.
The display is an aid to programme the telephone numbers for the person doing the
commissioning.
Date
20.08.2008
Page:
2/10
© 2008 ProCom, All rights and technical changes reserved
Author: HS Document-No.:
S0_DB_2870_01
Data Sheet
S0 Attachment
S0 Attachment for 4FTR and LCPU
Public addressing can be carried out for remote locations with the digital switching
system DVS-21 over private and public communications networks.
Two typical application examples are shown as follows.
ISDN-capable
user work station with monitor
ISDN- telephone
Euro- ISDN
S0
DVS- 21
Loudspeaker circuit 1
Platform 1
Call station
(DTA-030)
Loudspeaker circuit n
Platform n
Example 1: Remote public address on train platforms
The S0 attachment in the DVS-21 is connected to a basis connection of the ISDN
network (Euro-ISDN: protocol E-DSS1). Public addressing can be carried out through
other devices connected to the ISDN network.
Date
20.08.2008
Page:
3/10
© 2008 ProCom, All rights and technical changes reserved
Author: HS Document-No.:
S0_DB_2870_01
Loading...