Appendix; R S - 2 3 2 D B S I N T E R F A C E C A B L I N - Motorola OM 2000 Installation & Operation Manual

APPENDIX B — CABLING SPECIFICATIONS
This appendix provides interface-cabling guidelines for the OM 2000.
RS-232 DBS Interface Cabling
The OM 2000 is configured as a DTE:
C o n n e c t o r D B 9 m a l e s h i e l d e d c o n n e c t o r w i t h s c r e w l o c k s
t y p e
Cable type Shielded twisted pair
Baud rate Port 1: 9600 bps asynchronous (fixed), 8/N/1
Port 2: 19.2K maximum asynchronous (no sync mode), 8/N/1; Port 2
supports 300, 600, 1200, 2400, 9600, and 19200 bps
Ta b l e B - 1 — R S - 2 3 2 D B 9 I n t e r f a c e C o n n e c t o r P i n o u t
The OM 2000 can either source or sink the transmit clock. This is a configuration
selection. Sinking the clock is needed when sending data through a modem by a
networkTI line. In this case, the modem sources a clock that is locked to the
n e t w o r k . T h e O M 2 0 0 0 s i n k s t h e c l o c k a n d s o u r c e s d a t a t o t h e m o d e m t o b e s e n t t o
t h e n e t w o r k .
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