Enterasys csx5500 用户指南
USER’S GUIDE
60 CyberSWITCH
Hardware Characteristics
Processor:
Intel 80C186
Speed:
16 Mhz
Number of Ports:
4
Connector:
RJ-45
Interface:
Point-to-Point, Point-Multipoint for single device
MTBF:
75000hours
MTTR:
0.25hour
BRI-1 B
ASIC
R
ATE
A
DAPTER
The BRI-1 provides a single basic rate port with a standard S/T interface for attachment to an ISDN
basic rate line. This adapter can take advantage of such services as NTT’s INS-64, BOC’s Centrex
ISDN Basic Rate and PBX’s basic rate lines.
basic rate line. This adapter can take advantage of such services as NTT’s INS-64, BOC’s Centrex
ISDN Basic Rate and PBX’s basic rate lines.
Hardware Characteristics
Processor:
Intel 80C186
Speed:
16 Mhz
Number of Ports:
1
Connector:
RJ-45
Interface:
Point-to-Point, Point-Multipoint for single device
MTBF: 75000hrs
MTTR: 0.25hour
MTTR: 0.25hour
BRI C
ONNECTION
The BRI adapter uses the four wire S/T ISDN Interface. Each basic rate line will connect to a RJ-45
connector at the back of the system. Refer to the following table which provides the pin and signal
assignments for the BRI RJ-45 connector(s).
connector at the back of the system. Refer to the following table which provides the pin and signal
assignments for the BRI RJ-45 connector(s).
Pin and Signal Assignment for the BRI RJ-45 Connector(s)
Note:
For NTT lines, if the line has a Termination Resistor, remove it from the line jack. These
jacks are marked by having their names end in “R” (for example: MJ-8SR or MJ-28SR).
jacks are marked by having their names end in “R” (for example: MJ-8SR or MJ-28SR).
BRI Pin
Signal
Function
1
NC
No Connect
2
NC
No Connect
3
TX+ to CO
Transmit to Line (T)
4
RX+ from CO
Receive from Line (T)
5
RX- from CO
Receive from Line (R)
6
TX- to CO
Transmit to Line(R)
7
NC
No Connect
8
NC
No Connect