Enterasys csx5500 用户指南
USER’S GUIDE
92 CyberSWITCH
PRI-23/30
In addition to the interrupt jumper and I/O address settings, the PRI-23/30 requires settings for:
•
•
channel selection (T1 or E1)
•
MVIP bus termination
•
Robbed Bit Signaling (RBS)
•
E1/R2 signaling
Refer to the following chart for correct settings. Place the jumper on the pins identified to enable
the function, unless specified otherwise.
the function, unless specified otherwise.
Note:
When setting jumpers, orient the adapter so that the bus connectors are at the top of the
adapter, and all pin numbers are in an upright position.
adapter, and all pin numbers are in an upright position.
Note that JP1 has an unusual pin-numbering scheme. Be sure to place jumpers vertically
(on pins 1 and 3 or pins 2 and 4, depending upon channel selection). The only jumper that
you will need to place horizontally is JP4.
(on pins 1 and 3 or pins 2 and 4, depending upon channel selection). The only jumper that
you will need to place horizontally is JP4.
*
T1 mode supports RBS functionality; E1 mode supports R2 functionality. Use JP1, JP3 and
JP6 to designate either T1 or E1 mode.
JP6 to designate either T1 or E1 mode.
**
Refer to
.
Jumper
Function
T1 (short haul)
100 ohms TP
100 ohms TP
T1 (long haul)
100 ohms TP
100 ohms TP
E1 (short haul)
75 ohms coax
75 ohms coax
E1 (short haul)
120 ohms TP
120 ohms TP
E1 (long haul)
120 ohms TP
120 ohms TP
JP1
T1/E1
2-4
2-4
1-3
1-3
1-3
JP3
T1/E1
3-4
3-4
1-2
1-2
1-2
JP4**
termination**
1-2
1-2
3-4
5-6
5-6
JP6
T1/E1
jumper in
jumper in
no jumpers
no jumpers
no jumpers
JP7**
termination**
1-2
1-2
1-2
1-2
2-3
JP8**
termination**
1-2
1-2
1-2
1-2
2-3
JP9
MVIP
jumper in
to terminate
jumper in
to terminate
jumper in
to terminate
jumper in
to terminate
jumper in
to terminate
JP11*
RBS*
R2 signaling
(Korea)
jumper out
to enable
N/A
jumper out
to enable
N/A
N/A
jumper out
to enable
N/A
jumper out
to enable
N/A
jumper out
to enable