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Cisco ONS 15454 Reference Manual, R7.0
78-17191-01
Chapter 2 Common Control Cards
2.7 2.7.4 Power Monitoring
The AIC-I supports selective dual tone multifrequency (DTMF) dialing for telephony connectivity,
which causes one AIC-I card or all ONS 15454 AIC-I cards on the orderwire subnetwork to “ring.” The
ringer/buzzer resides on the AIC-I. There is also a “ring” LED that mimics the AIC-I ringer. It flashes
when a call is received on the orderwire subnetwork. A party line call is initiated by pressing *0000 on
the DTMF pad. Individual dialing is initiated by pressing * and the individual four-digit number on the
DTMF pad.
Table 2-21 shows the pins on the orderwire connector that correspond to the tip and ring orderwire
assignments.
When provisioning the orderwire subnetwork, make sure that an orderwire loop does not exist. Loops
cause oscillation and an unusable orderwire channel.
Figure 2-10 shows the standard RJ-11 connectors used for orderwire ports. Use a shielded RJ-11 cable.
Figure 2-10 RJ-11 Connector
2.7.4 Power Monitoring
The AIC-I card provides a power monitoring circuit that monitors the supply voltage of –48 VDC for
presence, undervoltage, or overvoltage.
2.7.5 User Data Channel
The user data channel (UDC) features a dedicated data channel of 64 kbps (F1 byte) between two nodes
in an ONS 15454 network. Each AIC-I card provides two user data channels, UDC-A and UDC-B,
through separate RJ-11 connectors on the front of the AIC-I card. Use an unshielded RJ-11 cable. Each
UDC can be routed to an individual optical interface in the ONS 15454. For UDC circuit provisioning,
refer to the “Create Circuits and VT Tunnels” chapter in the Cisco ONS 15454 Procedure Guide.
The UDC ports are standard RJ-11 receptacles. Table 2-22 lists the UDC pin assignments.
Table 2-21 Orderwire Pin Assignments
RJ-11 Pin Number Description
1 Four-wire receive ring
2 Four-wire transmit tip
3Two-wire ring
4Two-wire tip
5 Four-wire transmit ring
6 Four-wire receive tip
61077
Pin 1 Pin 6
RJ-11