Slot Card Specifications
24-port T1 or E1 slot card
APX 1000™ Getting Started Guide
B-5
Figure B-4. 24-port T1 or E1 slot card
Note:
Because of its dimensions, this card can be installed only in the APX 1000 top slot
(slot 5).
Status indicator
The 24-port T1 or E1 card provides the FAULT indicator described in “Multipurpose status
indicator on slot cards” on page B-1.
T1 technical specifications
When used to support T1 service, each T1 line supports 24 64Kbps DS0 channels, each of
which can transmit and receive data or digitized voice.
Table B-5 describes the 24-port slot card T1 specifications.
Table B-5. T1 specifications for the 24-port T1 or E1 slot card
Category
Specification
Interface standards
American National Standards Institute (ANSI) T1.403 and T1.408
ETSI 300-166 and 300-233
AT&T PUB 62411
Input jitter
Per Telecordia (BELLCORE) TA-TSY-000170 and AT&T PUB
62411.
Electrical standards
Digital signal cross-connect (DSX): (DSX-1) per ANSI T1.102
Channel service unit (CSU): DS1 per ANSI T1.403, Pub 62411
Line buildout
Channel service unit (CSU): 0dB, -7.5dB, -15dB, or -22.5dB
Digital cross connect (DSX): 0 to 133 feet (0 to 40.54m), 133 to
266 feet (40.54 to 81.1m), 266 to 399 feet (81.1 to 121.62m), 399
to 533 feet (121.62 to 162.46m), 533 to 655 feet (162.46 to
199.64m)
Receive equalization
Based on cable length and transmitter
Rx sensitivity
0 to -36dB
Line code
Alternate mark inversion (AMI) and bipolar 8-zero substitution
(B8ZS)
Line rate
1.544Mbps ± 32ppm