Paradyne 1900 manual Task 002 Installing the 19 Fan Tray

2. BitStorm 1900 Installation and Testing

Task 002: Installing the 19” Fan Tray

The 19" fan tray is necessary for a chassis housing one or more 10306 or 10224 CO modem cards. The fan tray is installed under each BS1900 shelf and contains six forced-air cooling fans to ensure sufficient cooling for operation. Use this procedure only to connect fan trays for use with the 10306 or 10224 CO modem cards. The following instructions are for installation of the -48 V DC and 110/220 V AC (switch selectable) fan trays.

Step Procedure

1.)

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Seat the fan tray at the bottom of the rack, leave room for at least 1 RU (Rack Unit) of air entry, then mount the two (2) side brackets (19” mounting ears) to secure the tray in the shelf. (For 23” racks, use 23” adapter ears.) Brackets are adjustable for flush and mid- mounting. Refer to Figure 2-2, "Fan Tray Mounting," on page 39.

WARNING: POSSIBLE EQUIPMENT DAMAGE! AC Fan Trays are shipped with an air filter frame. To ensure proper airflow, the frame must be installed. DO NOT install an air filter for the AC Fan Tray, only the frame.

2-38 BitStorm 1900 Installation and Maintenance Guide 1900-A2-GN20-00