Connector pin assignments 1095
•High-speed interface: The high-speed interface combines features of
the RS-422-A standard for the data and timing signals with standard
RS-232-C control signals. It is used when the signal rate is greater than
19.2 kbps and/or when the distance between the system and host is
greater than 15.24 m (50 ft). No modems are needed if the distance is
less than 30.48 m (100 ft).
The high-speed interface uses a proprietary pin assignment, rather than
the standard 37-pin RS-449 arrangement. This pin arrangement is
compatible with the Spectron Cable #75-025 for V.35use. See Tabl e
446 "Connector J1 and J2 pin assignments - high-speed interface"
(page 1096).
The data and timing signals on the high-speed interface use RS-422-A
type differential line drivers and receivers in a balanced configuration.
These drivers and receivers are able to drive higher data rate signals
over longer distances than standard RS-232-C drivers and receivers. A
typical connection using these drivers and receivers is shown in Figure
311 "Typicalhigh-speed interface line driver and receiver" (page 1095).
Figure 311
Typicalhigh-speed interface line driver and receiver
Connector pin assignments
Table445 "Connector J1 and J2 pin assignments - RS-232-C interface"
(page 1096) shows the pin assignments for J1 and J2 when the port is
configured for RS-232-C interface,and Table 446 "Connector J1 and J2 pin
assignments - high-speed interface" (page 1096) shows the pin assignments
for J1 and J2 when the port is configured for the high-speed interface.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23May 2008
Copyright© 2003-2008, Nor tel Networks
.