Cabletron Systems HSIM-A6DP- - Manual (Page 98)

Appendix A: APIM Specifications
A-6 HSIM-A6DP User’s Guide
A.6 APIM-67 SPECIFICATIONS
Physical Interface: DS3
Media Type: 75 Ohm Coaxial Cable
Data Rate: 45 Mbps
Connector Type: BNC
Typical Link Distance: 136 Meters
The APIM-67 conforms to the electrical characteristics specified by ANSI
T1.404-1989 Carrier-to-Customer Installation-DS3 Metallic Interface
Specification, Section 5.12 Grounding Arrangements. In accordance with
this specification, each channel (Transmit and Receive) must be grounded
at one end.
Cabletron Systems ships the APIM-67R with the following default
jumper settings:
• Receive channel jumper - grounded
• Transmit channel jumper - not grounded
Figure A-6 shows the location and default setting of each jumper. Refer to
Figure A-6 if you need to change the jumper settings to properly connect
the APIM-67R to another DS3 device.
!
CAUTION
The APIM-67R does not use Cell Payload Scrambling.
Scrambling must be disabled on any DS3 device connected to
the APIM-67R.