RAD Data comm LRS-24 - Manual (Page 38)

Chapter 2 Installation and Setup LRS-24 Installation and Operation Manual
2-10 Installation and Setup
Internal Jumpers
Figure 2-5 shows the location of the user-selectable jumpers located on the CM-1
module. Figure 2-3 lists the jumper settings.
The CM-1 module includes additional factory-set jumpers, which must not be
moved by the user.
JP11 LCODE
T1 Line
Code
AMI
E1 Line
Code
HDB3
Interface Selection
Jumpers JP4, JP5, JP6
Balanced
E1 Interface
JP4
JP5
JP6
E1-BAL
JP4
JP5
JP6
T1-DSU
JP4
JP5
JP6
E1-UBAL
Balanced
T1 Interface
Unbalanced
E1 Interface
JP12 RLOOP
Remote Loopback
Toward Station
Clock Source
No Loopback
ON
OFF
Jumper JP9, JP10
Balanced
Clock
Interface
BAL
UNBAL
Unbalanced
Clock
Interface
JP14 STATCLK
Clock at
System
Levels
SYS
TTL
Clock at
TTL Levels
JP15 RCEN
TTL Level
Converter
Enabled
EN
DIS
TTL Level
Converter
Disabled
BAL
JP1
4
JP12 JP1
1
JP
15
RLOOP LCODE
ON AMI
HDB3
OFF
JP
9
JP4
JP5
JP6
E1-BAL
E1-UBAL
T1-DSU
JP
1
0
UBAL
EN
DIS
RCEN STATCLK
SYS
TTL
Figure 2-5. Module CM-1, Internal Jumpers
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