D i a l o g i c P C I L i n e c a r d s
1 7
1081-50821-00 Rev 01
October 2011
Cabling D/480JCT-T1 PCI Linecards to the Telephone System
OneBox assigns port numbers in ascending order based on the linecard identification number.
For example, a D/480JCT-T1 linecard to which you assigned the linecard ID 1 is assigned line
numbers 1
–48; a D/480JCT-T1 linecard to which you assigned the linecard ID 2 is assigned line
numbers 49-96.
Refer to the topic, ―
Assigning the Linecard Identification Number
‖ for
information on assigning the linecard ID. Keep this line assignment scheme in mind when
connecting each D/480JCT-T1 linecard to the telephone system.
There are two RJ-48C connectors on the rear bracket of each D/480JCT-T1 linecard. These are
120-Ohm high impedance connectors. Figure 13 shows the pin-out of these connectors.
NOTE
The bottom T1 port or T1 port closest to the PCI edge connector is port 1, channels 1-24.
Pin 8: Shield
Pin 7 Shield
Pin 6: Reserved
Pin 5: TX Tip (T1)
Pin 4: TX Ring (R1)
Pin 3: Reserved
Pin 2: RX Tip (T
Pin 1: RX Ring (R)
Figure 13: Pin-out of the RJ-48C connector
