Cabletron Systems BRIM-A6 manual APIM-67 Specifications, Bnc

		APIM-67 Specifications
A.5 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 does not use Cell Payload Scrambling.

!Scrambling must be disabled on any DS3 device connected to C AUT IO N the APIM-67.

The APIM-67 conforms to the electrical characteristics specified by ANSI T1.404-1989 Carrier-to-CustomerInstallation-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-67 with the following default jumper settings:

•Receive channel jumper - grounded

•Transmit channel jumper - not grounded

Figure A-2 shows the location and default setting of each jumper. Refer to Figure A-2 if you need to change the jumper settings to properly connect the APIM-67 to another DS3 device.

RECEIVE CHANNEL JUMPER (GROUNDED)

TRANSMIT CHANNEL JUMPER (NOT GROUNDED)

142910

Figure A-2 The APIM-67 Default Jumper Settings

BRIM-A6 User’s Guide Page A-3