Hardware installation 33
Models 2603, 2621, and 2635 User Manual 3 • Initial Configuration
4. Re-assemble the case.
The interface cable has been installed, go to section “Installing the AC power cord” on page 34.
Installing an interface cable on the OnSite 2635’s V.35 interface port
The OnSite Model 2635 comes with a V.35 interface presented on a DB-25 female connector (see figure 10).
The Model 2635 V.35 (DB-25) interface is configured internally as a DCE. However, when using the Patton
cable with the 2635, the V.35 interface at the M/34 end of the cable is a DTE (see figure 11). In other words,
the Patton DB-25 to M/34 cable is a sync null modem cable.
Figure 10. Rear view of the 2635 showing location of Ethernet and V.35 connectors
The interconnecting cables shall be acceptable for external use
and shall be rated for the proper application with respect to volt-
age, current, anticipated temperature, flammability, and
mechanical serviceability.
CAUTION
MDI-X
Crossover
10/100
EthernetPower
MDI-X
Crossover
10/100
Ethernet WAN
X.21 Interface
V.35 Interface
Power
V.35 Interface connector
(DB-25)
Ethernet connector
(RJ-45)