Slot Card Specifications and Connection Information
DS3-ATM card
MAX TNT Hardware Installation Guide A-3
Status lights
All status lights except LA are illuminate upon startup or restart and remain illuminated until
the card passes its POST. If no status lights are illuminated, the DS3 interface is disabled or is
receiving an Alarm Indication Signal (AIS) or Idle Signal.
Physical interfaces Four (two active, two standby) ATM UNI 3.0/3.1
cell-bearing DS3 ports supporting C-bit/M-framing,
PLCP per TR-TSY-000773, and direct cell mapping per
G. 8 04
BNC connector per ANSI T1.404
Electrical standards DSX-3 per ANSI T1.404
Line buildout 0-225 feet (0-68.6m), or 226-450 feet (68.9-137.6m)
Receive equalization Based on cable length and transmitter
Line code Bipolar with 8-zero substitution (B3ZS)
Line rate 44.736Mbps ± 20ppm
Frame format Per ANSI T1.107a (C-bit parity)
Alarm signaling Upon DS3 Red Alarm, yellow signal sent on the DS3, AIS
sent on DS2s
Upon DS2 Red Alarm, AIS sent on DS1s
Connectors 75-ohm BNC coaxial
Interfaces per card One unchannelized DS3 port with integrated CSU/DSU.
Maximum of four cards per chassis
Card dimensions 5.6 inches high x 10.7 inches long (14.2cm x 27cm)
Card weight ~2 pounds (0.9kg)
Operating humidity 0-90%, non-condensing
Operating temperature 32-104° F (0-40° C)
Table A-1. DS3-ATM card specifications (continued)
Category Specification
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