Bay Technical Associates BayStack ARN Routers none - Manual (Page 128)

Installing and Operating BayStack ARN Routers
C-8 114200 Rev. A
Token Ring UTP Interface
The token ring UTP interface provides unshielded twisted-pair support. The ARN
token ring expansion module, and token ring/tri-serial expansion modules contain
this receptacle.
Table C-6 shows the RJ-45 pin assignments for the UTP interface and identifies
the pin locations.
Serial Interfaces
The ARN supports up to five serial interfaces. You can connect up to three, 44-pin
(DB-44) serial cables to an ARN that contains an optional Ethernet/tri-serial,
token ring/tri-serial, or tri-serial expansion module. You can connect one, 44-pin
serial cable to each Serial adapter module (the ARN can support two).
The serial interfaces provide multiprotocol WAN connection, each operating
independently with RS-232, RS-422, RS-530, V.35, and X.21 electrical interfaces
at transmission rates from 1200 b/s to 2.048 Mb/s. When used with standard
keyed cables, the ports automatically configure to the desired electrical interface.
You can use the following cables, described in the Cable Guide for Routers and
BNX Platforms:
• V.35 connections Order No. 7220
• X.21 connections Order No. 7224
• RS-422 connections Order No. 7318
Table C-6. Token Ring UTP Interface Pin Assignments
Pin Assignment Pin No. Signal (Function)
1 Not used
2 Not used
3 TX+ (Transmit to UTP wire)
4 RX+ (Receive from UTP wire)
5 RX- (Receive from UTP wire)
6 TX- (Transmit to UTP wire)
7 Not used
8 Not used
1 2 3 4 5 6 7 8