Issue 03.2016
7/12
DSU BOX – user manual
3.2
Installation
Connect DSU module “TTY input” to unused “Terminal” connector of
SIMATRIX video matrix, by using a 1:1 direct connection cable
(male/female, maximum length: 5m).
DSU will be supplied with power from video matrix via this cable. Do
not connect an additional external power supply to DSU!
If distance between DSU and video matrix is greater than 5m, power
has to be supplied by an external power supply 12V/200mA (not part
of the delivery, available on request). Only Pin 3 and 4 of “TTY input”
must be used in this case, not pin 6 and 7 (cable length: up to
1200m).
Connecting an external power supply to DSU
–
Disconnect all plugs from DSU
–
Unscrew two upper screws on each side of housing to remove top
cover of DSU (i.e. four screws in total)
–
Remove top cover of DSU
–
Cable of power supply should be passed through feed-through
hole, dismantled and connected to two-pole power supply terminal
block (use a screwdriver to release clamp lever)
–
Prior closing and screwing housing, perform a short test for
function. Status LED must blink green
Remark: LED will be unilluminated, if polarity is wrong
Following LED states are possible:
–
LED blinks green: operable, not data received
–
LED lights green: valid data received
–
LED blinks red/green: faulty data / configuration of input
interface (RS422-polarity, baudrate, parity, switch S6)
3.3
Configuration
Some DSU configuration by internal DIP switches is dependent on
firmware version. Firmware version is printed on label inside DSU
(three letters). Following tables will describe DIP switch function ac-
cording to firmware version: