User`s guide

Electrical and Mechanical Interfaces
26
PCLTA-21 Board Layout
Figure 4.1 shows the layout of the PCLTA-21 card Models 74501, 74502, 74503,
and 74504. Model 74504 (TP-RS485) includes jumpers that must be configured
to set the correct speed on the RS-485 channel (figure 4.2).
Figure 4.1 PCLTA-21 Models 74401-74404 Mechanical Layout and Interfaces