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2.4
TDIF I/O Cards
2.4.1
D19m TDIFI – Dual 8-Channel TDIF In
Configuration:
Date printed: 30.06.20
Two TDIF inputs are routed to the TDM bus, where they are read from a
MADO card and can then be output through a MADI link.
The second version of this card (1.940.481) is equipped with additional
AES/EBU outputs for standalone applications. For this purpose, also an
AES/EBU receiver for synchronization, output transformers, and drivers are
provided.
The input sampling frequency can be between 28 kHz and 55 kHz.
The TDM output occupies the addresses of 4 slots (16 signals). The ad-
dresses are set via DIP switches. In cases where only one TDIF input is
needed, it is possible to use eight TDM signals only by setting a jumper
(8/16CH) on the card.
Sync:
The synchronization comes usually from the TDM bus. In standalone appli-
cations an AES/EBU sync input provides the synchronization.
TDIF IN 1
TDIF IN 2
SYNC IN
AES DARS
1.940.481.xx only
On standard cards, the card address is given by the physical slot on the
backplane itself; this means that the card in slot 0 occupies the channels 1 to
4, the second slot corresponds to channels 5 to 8, etc. Since the TDIF card
provides 16 inputs instead of 4, the card addresses have to be configured via
DIP switches (card addresses 0 to 12).
Please be careful to correctly set the card addresses because of potential
conflicts with other cards. Typically, the lower slots are used for standard
4-channel cards; the TDIF interfaces are moved to the higher addresses.
Card
address
0
1
2
3
4
5
6
7
8
9
10
11
12
PLL
BUFFER
CONTROLLER
SYNC
REC
ADDRESS
8/16 CH
CH no., single
CH no., both
input used
inputs used
1...8
1...16
5...12
5...20
9...16
9...24
13...20
13...28
17...24
17...32
21...28
21...36
25...32
25...40
29...36
29...44
33...40
33...48
37...44
37...52
41...48
41...56
45...52
not allowed
49...56
not allowed
D19m Technical Description
1.940.480/1.940.481
AES OUT 1-4
1.940.481.xx only
TDM BUS
BUFFER
AES OUT 5-8
1.940.481.xx only
DIP Switch
1
2
3
on
on
on
off
on
on
off
on
on
off
off
on
on
on
off
off
on
off
on
off
off
off
off
off
on
on
on
off
on
on
off
on
on
off
off
on
on
on
off
D19m E49
CLOCKS
4
on
on
on
on
on
on
on
on
off
off
off
off
off
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