Specifications

1-3
PA-8T-V.35 Synchronous Serial Port Adapter Installation and Configuration
OL-3563-03
Chapter 1 Overview
LEDs
Note V.35 supports 2.048-Mbps rates without any problems; we do not recommend exceeding the above
specifications for transmission speed versus distance. Do so at your own risk. The total aggregate
bandwidth for the PA-8T-V.35 is 16 Mbps, which can be divided into 8 Mbps on two ports; 4 Mbps on
four ports; or 2 Mbps on eight ports.
LEDs
The PA-8T-V.35 has one row of eight status LEDs (one for each port) and one enabled (EN) LED. (See
Figure 1-2.) The green- and amber-colored LED for each port indicates port status.
Figure 1-2 LEDs on the PA-8T-V.35 Port Adapter—Horizontal Orientation
After system initialization, the enabled LED goes on to indicate that the port adapter has been enabled
for operation.
The following conditions must be met before the PA-8T-V.35 is enabled:
• Port adapter is correctly connected to the backplane or midplane and receiving power.
• Valid system software image for the port adapter has been downloaded successfully.
• System recognizes the port adapter or PA-8T-V.35-equipped VIP, Catalyst RSM/VIP2,
Catalyst 6000 family FlexWAN module, or Cisco 7304 PCI Port Adapter Carrier Card.
If any of the above conditions are not met, or if the initialization fails for other reasons, the enabled LED
does not go on.
Table 1-2 lists port LED colors and indications.
H7376
EN
0 7 1 2 3 4 5 6
SERIAL-V.35
Table 1-2 PA-8T-V.35 Port LED Indications
LED Label Color State Function
0 through 7 Green On Port is initialized by the system (the software
recognizes the hardware), and a V.35 compact
serial cable is properly connected at the router
end and the network end.
Green Flashing Port is sending and receiving data in half-duplex
mode (Cisco 7200 series routers only).