User Guide
DVS-21
02/2018
• V.1.0 • L. Wolle
37/131
© 2017 ProCom
®
Professional Communication & Service GmbH • Technical changes reserved.
Backplane connectors:
Newer backplanes have 2 two-pole solder posts to the left of the SUBD-25 jack.
Using this, the clock input be connected directly to the receiver (RXa/RXb) of a
4FTR with a 2Mbit attachment on Slot 3, Set 1. On backplanes without soldering
points or for alternative wiring the contacts of the series 30 have to be used!
E1a Clock input
E1b Clock input
7.3 LCPU
Processor module for special tasks. (Not a replacement for the system CPU)
Additional Linux system for compute-intensive tasks and LAN connectivity.
Connection and management of ProCom workstations BSA
Warning travelers
Automatic announcements
VoIP connection (Voice over IP)
ISDN with enhanced functionality
Additional slot for a 2Mbit or ISDN function-module
Configuration and terminal assignment of the modules (2Mbit, ISDN) can be found at
. The slot
corresponds to Set 4
Note!
In case of ISDN, one must distinguish between the classic attachment operation, e.g. with 4FTR,
and the extended operation with Linux support. In
advanced ISDN operation
a modified function-module
is to use. The processing is not executed by the Function-module, but by the Linux kernel. In this case,
Programming
of the DVS must be done to set
1
!
Display and control elements:
LEDs
B
-
without function
L
-
without function
GREEN - FLASHING Function-module reports incoming data
GREEN - FLASHING Function-module reports outgoing data
On
GREEN - ON
Function-module is ready
Al
RED - ON
Function-module reports a fault
Connectors
USB-M USB-A
without function
USB-S USB-B
without function
LAN RJ45
Ethernet connector for data transfer and service
