User's Manual

µLink System Manual 862-01545
Page 6 Issue 1b
Interface
Definitions
The µLink System has the following user services: (see
Table 3).
Table 3. µµLink System: User Services
Payload Data Interfaces
E1 Data Interface
120Ω RJ-45/75Ω BNC (factory set). Bipolar AMI
or HDB3 selectable.
T1 Data Interface
100Ω/75Ω (factory selectable), RJ-45 or BNC
Connector. Bipolar AMI or B8ZS selectable.
Wayside Serial Data Channel
Provided for user data. Supports asynchronous full duplex serial data
transfer (with hardware control). 300 to 19200 baud (software selectable).
Auxiliary / Alarm Inputs and Outputs
Inputs Two (2) Switch Closure Sense inputs are
provided.
Outputs Two (2) isolated relay contact outputs are
provided. These are presented to the customer as
three output, namely Common, NO and NC.