Cisco 7000 - Page 138

3-134 Cisco 700 Hardware Installation and Mainteneance
Connecting Interface Cables
Figure 3-12 Dual Attachment Station (DAS), Single-Mode Fiber Network Connections
Figure 3-13 Dual Attachment Station (DAS), Multimode Fiber Network Connection
H1546a
U23
ENABLED
TX
RX
PHY B
PHY A
TX
RX
To primary ring
From secondary ring
To secondary ring
From primary ring
Optical
bypass port
H1547a
U23
ENABLED
PHY A
TX
RX
PHY B
TX
RX
To primary ring
From secondary ring
To secondary ring
From primary ring
Optical
bypass port