BITS Timing Interface
External Building Interface Timing Supply (BITS) timing is an alternative to using clock signals derived
from an ATM port on an OLC/OLC2, or an ANSI SONET STS-3/SDH STM-1 port on a CLC/CLC2 to
synchronize line card timing. (Line-derived clocking requires that the SPIO be equipped with the optional
Stratum 3 clock module.)
Important
BITS E1 BNC Interface
The BNC version of the SPIO employs a 75-ohm coaxial BNC connector that accepts an analog E1 BITS
signal from which the SPIO derives a 2048 kHz clock. The following figure shows the BITS BNC timing
interface.
Figure 67: SPIO E1 BITS BNC Pinout
BITS T1 3-Pin Interface
The 3-pin version of the SPIO employs a wire-wrap connector that accepts a T1 (DS1) BITS data signal (all
ones) from which the SPIO derives a 1544 kHz clock. The following figure shows the BITS 3-wire timing
interface wire-wrap pin-out.
Figure 68: SPIO T1 BITS Wire-Wrap Pinout
Fast Ethernet Line Card (FLC2) Interfaces
Each of the eight RJ-45 interfaces available on the FLC2 supports auto-sensing 10Base-Tx or 100Base-Tx
Ethernet interfaces.
10/100 Mbps RJ-45 Interface
The RJ-45 interfaces on the Fast Ethernet line card support the following cable types and transfer rates.
ASR 5000 Installation Guide
241
Technical Specifications
Fast Ethernet Line Card (FLC2) Interfaces
Summary of Contents for ASR 5000
Page 16: ...ASR 5000 Installation Guide xvi About this Guide Contacting Customer Support ...
Page 64: ...ASR 5000 Installation Guide 48 Installation Procedure Overview Laser Notice ...
Page 100: ...ASR 5000 Installation Guide 84 Line Card Installation Installing the XGLC ...
Page 122: ...ASR 5000 Installation Guide 106 Cabling the Fast Ethernet 10 100 Line Card FLC2 Interfaces ...
Page 206: ...ASR 5000 Installation Guide 190 Removing and Installing SMC PC Cards Removing PC Cards ...
Page 212: ...ASR 5000 Installation Guide 196 Replacing the Chassis Air Filter Installing the Air Filter ...
Page 220: ...ASR 5000 Installation Guide 204 Replacing a Power Filter Unit What to do with the Failed PFU ...
Page 266: ...ASR 5000 Installation Guide 250 Safety Electrical and EMC Certifications Korean EMC ...
Page 270: ...ASR 5000 Installation Guide 254 Environmental Specifications Chassis Air Flow ...