1-18
PA-A2 ATM CES Port Adapter Installation and Configuration
OL-3460-01
Chapter 1 Overview: PA-A2 ATM CES Port Adapter
PA-A2 ATM CES Cables, Connectors, and Pinouts
Table 1-5
describes the LEDs that indicated CBR port status. There are four Enabled and four Alarm
LEDs, one for each port.
PA-A2 ATM CES Cables, Connectors, and Pinouts
Cables on the ATM CES port adapter fall into two categories described in the following sections:
•
ATM Port Cables, page 1-18
•
CBR Port Cables, page 1-19
ATM CES port adapter interfaces are full-duplex. You must use the appropriate ATM interface cable
and CBR cable to connect the ATM CES port adapter with an external ATM network. The ATM CES
port adapters, shown in
Figure 1-9
and
Figure 1-10
, provides an interface to ATM switching fabrics for
transmitting and receiving data at rates of up to 155 Mbps bidirectionally for OC-3, 44.736 Mbps
bidirectionally for DS3 over T3, and 34 Mbps bidirectionally for E3.
ATM Port Cables
Two types of cables are available for use with the ATM CES port adapter’s OC-3 and T3/E3 ATM ports:
•
An OC-3 single-mode ATM interface cable, which is used to connect a router to an external DSU
(an ATM network)
•
A T3/E3 75-ohm coaxial interface cable, which is used to connect a router to an external DSU (an
ATM network)
Both ATM cables conform to the EIA/TIA-612 and EIA/TIA-613 specifications. The ATM port on the
ATM CES port adapter is a DTE device.
For OC-3 single-mode, the ATM CES port adapter connects to the SONET/SDH 155-Mbps single-mode
optical fiber physical layer, either STS-3C or STM-1. The connection is made by means of single-mode
OC-3 ATM cables with SC connectors (see
Figure 1-13
). The SONET single-mode SC connector is
shipped with removable dust covers on each SC connector. Keep covers on any connectors that are not
being used.
OOF
Yellow
On
Indicates that Framer detected Out of Frame.
AIS
Yellow
On
Indicates that Framer detected Alarm Indication
Signal.
Table 1-4
Uplink Port Status LEDs
Table 1-5
CBR Port Status LEDs
Enabled LED State
Alarm LED State
Decription
Off
Off
Indicates that the port is administratively down.
Off
On (yellow)
Indicates that the port is in loop mode.
On (green)
Off
Indicates that the port is enabled (normal state).
On (green)
Blinking (yellow)
Indicates an integrting state, an idle state, a
yellow or a blue alarm.
On (green)
On (yellow)
Indicates a red alarm condition.
