Cables and Connectors
IDSL specifications
MAX 4000 Series Hardware Installation Guide Preliminary November 4, 1998 C-43
IDSL specifications
Check with your provider regarding the network-interface specifications for the ISDN Digital
Subscriber Line (IDSL) card. The card supports loopback testing. It includes an RS-449 cable
for connection to a DCE device.
General specifications
Following are the general specifications for the IDSL card:.
Network-interface specifications
Specifications for the IDSL network interface are as follows:
• 18,000 feet over copper twisted pair
• AT&T Point-to-Point
• 2B1Q signaling compatible
• Data only at 128 Kbps (symmetric)
The network interface is compatible with:
• ANSI T1.601-1991
• CNET specification technique ST/LAA/ELR/DNP/822
• ETSI DTR/TM 3002
• Recommendation CCITT G961
• Most of the commercially available 2B1Q band ISDN BRI terminal adapters, bridges, and
routers
Voice Channels 2
Transfer rate 128 Kbps (symmetric)
Transmission distance 18,000 feet
Interfaces per card 8 ports per card, up to 6 cards per system
Physical connectors RJ-45
Connector requirements Must meet JIS C 5973 standards
Card dimensions 5.6 in high x 10.7 in long (14.2 cm x 27 cm)
Card weight ~2 pounds (0.9 kg)
Operating humidity 0-90%, noncondensing
Operating temperature 32–104° F (0–40° C)
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