Racal Instruments 1260-100 Manual page 20

Getting Started 2-4
1260-100/101 Adapt-a-Switch Carrier Module User Manual
For groups that are larger than twelve, additional
Option-01T modules are used.
Figure 2-1 illustrates the installation of an Option-01T into a
1260-100 Carrier. Follow these steps:
1. Remove the six screws that secure the access panel.
Remove the access panel by sliding it away from the front
panel.
2. Remove the Bridge module by pulling it straight out of the
carrier.
3. Disconnect the Fail LED cable from the connector on the
Mezzanine module. Next, remove the Mezzanine board by
pulling it straight out of the carrier.
4. Carefully remove the Local Bus Jumper Assembly (P/N
405951) and Bus Grant Jumper Assembly (P/N 405951-003)
from the Mezzanine board, taking care not to bend the
connector pins.
Option-01T needs to be relocated later.
5. Position the Option-01T over the Mezzanine board, so that
connectors P3 and P4 on the Option-01T align with
Mezzanine connectors J1 and J2, respectively. Press the
Option-01T and Mezzanine board together so that the
connectors mate fully. Secure the Option 01T to the
mezzanine board using the three screws included.
6. Re-install the Mezzanine board into the carrier, taking care to
align its connectors with those on the carrier backplane.
Connect the Fail LED cable to the three-pin plug on the
Option-01T module.
connected in either direction.
7. Re-install the Bridge module.
8. Re-install the access panel and secure with screws.
9. The user may want to mark the 1260-100 to indicate that the
01T is installed.
Store these in a safe place in case the
Polarity does not matter; it may be
Racal Instruments  1998