Cisco 7000 SERIES PA 8 PORT T1 MC ADAPTER WITH CSU DSU Specification Guide
1-5
Multichannel DS1/PRI Port Adapter Installation and Configuration
OL-3525-03
Chapter 1 Overview
LEDs
The multichannel DS1/PRI port adapter DS1/PRI ports receive and transmit at the T1 and DSX-1 level
while driving and receiving from a 100-ohm shielded twisted-pair cable. This port adapter connects
directly to any equipment that has T1 or DSX-1 level input/output. The DS1/PRI front end meets the
following specifications:
while driving and receiving from a 100-ohm shielded twisted-pair cable. This port adapter connects
directly to any equipment that has T1 or DSX-1 level input/output. The DS1/PRI front end meets the
following specifications:
•
Line rate: 1.544 Mbps (± 32 ppm)
•
Line code: AMI or B8ZS (bipolar with eight-zero substitution) on the external ports
•
Impedance: 100 ohms
•
Pulse shape: ANSI T1.102, pulse amplitude is between 2.4 and 3.6V peak
•
Output signal: DSX-1 can drive 655 feet (199.6 meters) of 100-ohm shielded twisted-pair cable and
meet DSX-1 pulse shape template at the line side
meet DSX-1 pulse shape template at the line side
T1 versions of the multichannel DS1/PRI port adapter support all DSX-1 specifications, plus the
following features:
following features:
•
Selectable line build out of 0 dB, –7.5 dB, or –22.5 dB
•
Selectable receiver gain between 26 dB and 36 dB
•
Line protection per UL 1459/1950 and FCC part 68
Note
Up to 128 interfaces can be configured per multichannel DS1/PRI port adapter. For example, if you have
an eight-port multichannel DS1/PRI port adapter with 24 channels per port (or 24 x 8), you have 192
interfaces—this is greater than 128, and therefore is not allowed.
an eight-port multichannel DS1/PRI port adapter with 24 channels per port (or 24 x 8), you have 192
interfaces—this is greater than 128, and therefore is not allowed.
LEDs
The multichannel DS1/PRI port adapter contains the ENABLED LED, standard on all port adapters, and
one status LED for each port. (The LEDs are shown in
one status LED for each port. (The LEDs are shown in
,
, and
Figure 1-4
Two-Port Multichannel DS1/PRI Port Adapter LEDs (Horizontal Orientation Shown)
Table 1-2
T1 Channel Data Rates
DS1/PRI Channel
Number
Number
Data Rate
0 to 23
n x 56 kbps up to full T1 (1.344 Mbps)
or
n x 64 kbps up to full T1 (1.536 Mbps)
or
n x 64 kbps up to full T1 (1.536 Mbps)
1
1.
Or any mixture of n x 56 and n x 64, where 2n < 24
24623
ENABLED
LINK
1
0
0
1