
CP 523 Hardware Installation
CPU 944 (TTY active) - CP 523 (TTY passive)
Figure 3-11. Pin Assignments for CPU 944 (TTY Active) to CP 523 (TTY Passive)
TTY IN - (2)
TTY OUT - (7)
(5)
+
+
CPU 944 CP 523
(12)
Ground
Ground
20 mA (11) (6) TTY IN+
TTY OUT+ (6) (8) TTY IN -
20 mA (13) (10) TTY OUT+
TTY IN+ (9) (12) TTY OUT -
Shield (1) (24) Shield
Shield (8) (25) Shield
EWA 4NEB 811 6044-02a
3-11
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