CTI Products RYB-8 Relay Board - Manual (Page 8)

MCN RYB-8 Relay Board Manual CTI Products, Inc.
4
2.4 600 Ohm Termination Jumpers E9-E16
A selectable 600 Ohm termination is available for each relay. The termination is
used in some telephone line applications when you need to terminate an unused
phone line. Jumper blocks E9 to E16 control the terminations. You can terminate
the Normally Open, Normally Closed, or Common pair as shown in Table 2 and
Figure 2
600 Ohm Termination E9-E16 Jumpers Installed
None None (or insert in "Park" positions)
Common Pair A1 & B1
Normally Open Pair A2 & B2
Normally Closed Pair A4 & B4
Table 2 - 600 Ohm Termination Jumpering
CA-80272-100
---------------
B
A
1
1 2
2 3
3 4
4
---------------
---------------
TERMINATE
COMMON PAIR
TERMINATE
TERMINATE
N.O. PAIR
N.C. PAIR
B
A
1
1 2
2 3
3 4
4
B
A
1
1 2
2 3
3 4
4
---------------
B
A
1
1 2
2 3
3 4
4
NO TERMINATION
(PARKING FOR UNUSED JUMPERS)
Figure 2 600 Ohm Termination Jumpering E9-E16