Specifications

1-3
PA-T3+ Serial Port Adapter Installation and Configuration
OL-3505-03
Chapter 1 Overview
Interoperability Guidelines for PA-T3+ DSUs
• Support for remote and local loopbacks
• B3ZS line coding
• Scrambling and bandwidth reduction
Interoperability Guidelines for PA-T3+ DSUs
The PA-T3+ supports several types of integrated data service units (DSUs). Table 1-1 lists the feature
compatibilities of PA-T3+ DSUs.
LEDs
The one-port PA-T3+ has six status LEDs and one enabled LED. (See Figure 1-3.)
Figure 1-3 LEDs on the One-Port PA-T3+—Horizontal Orientation
The two-port PA-T3+ has six status LEDs for each T3+ serial port and one enabled LED
(See Figure 1-4.)
Figure 1-4 LEDs on the Two-Port PA-2T3+—Horizontal Orientation
After system initialization, the enabled LED goes on, indicating that the port adapter has been enabled
for operation.
Table 1-1 Feature Compatibilities of PA-T3+ DSUs
DSU
Full Rate
Support
Scrambling
Support
Subrate
Support MDL
1
Support
1. MDL (Maintenance Digital Link)
DL3100 Yes Yes Yes No
Kentrox Yes Yes
2
2. T3+ serial port adapters support scrambling and Kentrox subrate at the same time.
Yes
2
No
Larscom Yes Yes Yes No
ENABLED RCVR
XMTR
RCLK
AIS
FERF RL
OOF
LL
1DS3+ SERIAL
15968
LEDs
ENABLED RCVR
XMTR
RCLK
AIS
FERF RL RCLK FERF RL
OOF
LL
AIS
OOF
LL
2DS3+ SERIAL
15969
LEDs