User Manual

AS4000 Subscriber Terminal
Installation and Commissioning
GSI 002
605-0000-454
Draft Issue 1.3 Date 8/02/00
Page 12 of 14
3.12 The L Series Subscriber Terminals
The L series Subscriber Terminals are designed for Data and use an external
antenna and an internal Modular Service Interface Unit. The STs are powered
from the AC mains supply.
Service Interface Unit
Socket PSU
Internal Components
L128 1x 128k data lines
L64 1 x 64k data lines
L2 x64 2x 64k data lines
Antenna / RF
IF Drop Cable
External Components
MU-L128 1x 128k data lines
MU-L64 1 x 64k data lines
MU-L2 x64 2x 64k data lines
Figure 11. L Series Demand Assigned Subscriber Terminals
The ST-L128 supports a 128kbit/s serial data transmission operates in Fixed
Assigned mode. The Service Interface Unit is a MU-D128 with a RS530 25 way
D-Type socket interface.
The ST-L64 supports a 64kbit/s serial data transmission operates in Fixed
Assigned mode. The Service Interface Unit is a MU-D64 with a RS530 25 way
D-Type socket interface.
The ST-2xL64 supports two 64kbit/s serial data transmissions and operates in
Fixed Assigned mode. The Service Interface Unit is MU-D2x64 with 2x RS530
25 way D-Type socket interfaces.
Figure 12. The L Series Service Interface Unit. (MU-D2x64 shown).