User guide

Installing the Cisco 2524 and Cisco 2525 Routers 3-23
Connecting to the Network
Step 4 If you have a synchronous serial module, use a serial transition cable to connect
the synchronous serial port to a modem or DSU/CSU. (See Figure 3-23.)
Figure 3-23 Connecting Synchronous Serial Cables
SERIAL 1
SERIAL 0
BRI 0
H5369
Router
SERIAL
ACTIVITY
Serial transition
cable
Synchronous serial
port (DB-60)
DSU/CSU or
other DCE
EIA/TIA-232, EIA/TIA-449, V.35,
X.21, or EIA-530 connector