Cisco VIP-4R/4T Installation And Configuration Manual page 53

VIP Port Adapter Functions
Figure 29 shows the serial port adapter cables for connection from the 4T port adapters to your
network.
Figure 29 Serial Port Adapter Cables
(PA-4T port adapter)
Router connections
EIA/TIA-232 EIA/TIA-449 V.35 X.21 EIA-530
Network connections at the modem or CSU/DSU
Metric (M3) thumbscrews are included with each port adapter cable to allow connections to devices
that use metric hardware. Because the 4T port adapter uses a special, high-density port that requires
special adapter cables for each electrical interface type, we recommend that you obtain serial
interface cables from the factory.
Serial Port Adapter Cable Pinouts
The 4T port adapter supports EIA/TIA-232, EIA/TIA-449, X.21, V.35, and EIA-530 serial
interfaces.
All 4T ports use a a 60-pin receptacle that supports all available interface types. A special serial
adapter cable, which is required for each port, determines the electrical interface type and mode of
the interface. The router (VIP) end of all of the adapter cables is a 60-pin plug; the connectors at the
network end are the standard connectors used for the respective interfaces.
All interface types except EIA-530 are available in DTE or DCE format: DTE with a plug connector
at the network end and DCE with a receptacle at the network end. V.35 is available in either mode
with either gender at the network end. EIA-530 is available in DTE only.
VIP-4R/4T Installation and Configuration 53