Cobalt Digital COMPASS 9822 Downconverter - Manual (Page 28)

2
Installing the 9822 Into a Frame Slot
2-2 9822 PRODUCT MANUAL 9822-OM (V4.1)
Note: • If installing the 9822 in a slot already equipped with a suitable I/O
module, proceed to card installation steps below.
• If installing the 9822 in a slot with no rear I/O module, a Rear I/O
Module is required before cabling can be connected. Refer to Installing a
Rear I/O Module (p. 2-3) for rear I/O module installation procedure.
CAUTION
If required, make certain Rear I/O Module(s) is installed before installing the
9822 into the frame slot. Damage to card and/or Rear I/O Module can occur if
module installation is attempted with card already installed in slot.
Note: Check the packaging in which the 9822 was shipped for any extra items such
as a Rear I/O Module connection label. In some cases, this label is shipped
with the card and to be installed on the Rear I/O connector bank correspond-
ing to the slot location of the card.
Install the 9822 into a frame slot as follows:
1. Determine the slot in which the 9822 is to be installed.
2. Open the frame front access panel.
3. While holding the card by the card edges, align the card such that the
plastic ejector tab is on the bottom.
4. Align the card with the top and bottom guides of the slot in which the
card is being installed.
5. Gradually slide the card into the slot. When resistance is noticed, gently
continue pushing the card until its rear printed circuit edge terminals
engage fully into the rear I/O module mating connector.
CAUTION
If card resists fully engaging in rear I/O module mating connector, check for
alignment and proper insertion in slot tracks. Damage to card and/or rear I/O
module may occur if improper card insertion is attempted.
6. Verify that the card is fully engaged in rear I/O module mating connector.
7. Close the frame front access panel.
8. Connect the input and output cables as shown in 9822 Rear I/O Modules
(p. 2-5).
9. Repeat steps 1 through 8 for other 9822 cards.
Note: External frame sync reference signals are received by the card over a refer-
ence bus on the card frame, and not on any card rear I/O module connectors.
The frame has BNC connectors labeled REF 1 and REF 2 which receive the
reference signal from an external source such as a house distribution.