RAD Data comm LRS-24 - Manual (Page 43)

LRS-24 Installation and Operation Manual Chapter 2 Installation and Setup
Interfaces and Connections 2-15
Table 2-5. Module CM-2 Jumper Settings
Jumpers Description Factory Settings
JP1 – JP9 Sets the jumpers according to the station clock applied to the STATION CLK
connector of the LRSI-F*-CM2 interface module. The available selections are
T1 clock source (1544 kHz clock), or E1 clock source (2048 kHz clock):
• T1 source: always select the balanced interface
• E1 source: select either the balanced or unbalanced interface, in
accordance with the source providing the clock signal
E1 120
JP12 Selects connection of Signal Ground to Frame Ground:
• GND – Connected
• N.C. – Disconnected GND
JP14 Enables Watchdog:
(see Figure 2-7)
ON
JP15 Enables Password:
• Bypass – Password not required
• Password – Password required
Bypass
JP16 Terminal Select:
• SCC1
• SCC2
SCC1
* Interface module version, for example, LRSI-F-1, LRSI-F-2, etc.
Figure 2-7 identifies the jumper settings for each clock source interface.
CM-2 Installation
➤ To install CM-2:
1. Check that the POWER switch of the interface module is set to OFF.
2. Insert the CM-2 module in the CL slot.
3. Fasten with the two screws.
2.5 Interfaces and Connections
This section describes the installation and connections for:
• PS Interface Modules
• LRSI-F-CM1 Interface Module
• LRSI-F-1-CM2 Interface Module
• LRSI-F-2-CM2 Interface Module
• LRS-24 Enclosure.
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