User's Guide
WCM MKII © RME
4
6. Technical Specifications and Features
•
Low Jitter Design: typical 2.5 ns (PLL / Test), < 1 ns (Masterclock)
•
Input PLL ensures zero dropout, even at more than 40 ns jitter
•
High sensitive input stage works from 1 Vpp input level
•
Rejects DC offsets in the word clock net
•
Overvoltage protected input stage
•
Short protected output stage
•
Frequency range PLL input: 27 kHz - 102 kHz
•
Frequency range output: 27 kHz - 102 kHz
•
Input BNC, high impedance (> 10 kOhm)
•
Output BNC, low impedance (10 Ohm)
•
Power supply: from DIGI96 series board, 12 V DC, 40 mA
•
Standard slot, board dimensions 97 x 50 mm
7. Hardware Installation
Important: Switch off the computer and remove the power cable from the power supply
before fitting the
WCM
.
1. Disconnect the power cord and all other cables from the computer.
2. Remove the computer's housing; further information on how to do this can be obtained from
your computer´s instruction manual.
3. Neutralize the static build up by touching the computer's metal-chassis before unpacking the
WCM
from the protective bag.
4. Connect
WCM
and
DIGI
using the supplied 3-wire cables. Plug one end into the connec-
tor
ST 7
on the
DIGI
, the other end into
ST 7
on the
WCM
. Note: The cable's connectors
will automatically plug in with the correct polarity.
5. Connect
ST 6
on the
WCM
with
ST 6
on the
DIGI.
In case several
DIGIs
are fitted, up
to three can be connected to the module.
6. Insert
WCM
into a free slot, press and fasten the screw (if any). As the
WCM
needs no
slot on the motherboard we recommend to use a free slot above the last PCI- or AGP slot.
7. Reinsert the
DIGIs
in their PCI slots and fasten the screws (if any).
8. Replace the computer's housing and tighten the screws (if any).
9. Reconnect the power cable and all other cables/connections.
