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Operation and Maintenance
5-6
9124-A2-LB20-00
March 2000
Control Lead Descriptions
For the network and DSX-1 interfaces, see Table 5-2, Network and DSX-1
Interface LEDs, for descriptions of these leads. The LED descriptions and control
lead descriptions are the same.
For Port-1, see Table 5-4, User Data Port LED. These indicators show the current
state of each control lead and what they indicate when they are highlighted; that
is, in the On state.
Table 5-4. User Data Port Control Leads
Label
Indication What It Means
OK Operational Status The user data port is operational, able to
transmit and receive data.
TXD Transmit Data Data is being sent to the far end device.
RXD Receive Data Data is being received from the far end device.
DTR Data Terminal Ready Shows the current state of the DTR control
lead. This indicator should always be on.
CTS Clear to Send Shows the current state of the CTS control
lead. This indicator should always be on.