Instruction Manual
Table Of Contents
- Introduction
- Circuit Description
- Figure 1 Input Jumpering E1-E8
- Figure 2 600 Ohm Termination Jumpering E9-E16
- Jumper List
- Table 4 - Power Connections TB1
- Table 5 - J1 Relay Contact Pinout
- Mounting and Cabling
- Figure 3 Relay Mounting Panel--Rear View
- Figure 4 Relay Mounting Panel Side
- Specifications
- Schematic
- Board Layout

MCN RYB-8 Relay Board Manual CTI Products, Inc.
6
3.2 Relay Output Connections -- J1
The relay output connections appear on a 50-pin female micro-ribbon telco style
connector, J1. The pinouts are as follows:
J1 Pin Function
26 K1 Tip Common
1 K1 Ring Common
27 K1 Tip Normally Open (N.O.)
2 K1 Ring Normally Open (N.O.)
28 K1 Tip Normally Closed (N.C.)
3 K1 Ring Normally Closed (N.C.)
29 K2 Tip Common
4 K2 Ring Common
30 K2 Tip Normally Open (N.O.)
5 K2 Ring Normally Open (N.O.)
31 K2 Tip Normally Closed (N.C.)
6 K2 Ring Normally Closed (N.C.)
32 K3 Tip Common
7 K3 Ring Common
33 K3 Tip Normally Open (N.O.)
8 K3 Ring Normally Open (N.O.)
34 K3 Tip Normally Closed (N.C.)
9 K3 Ring Normally Closed (N.C.)
35 K4 Tip Common
10 K4 Ring Common
36 K4 Tip Normally Open (N.O.)
11 K4 Ring Normally Open (N.O.)
37 K4 Tip Normally Closed (N.C.)
12 K4 Ring Normally Closed (N.C.)
38 K5 Tip Common
13 K5 Ring Common
39 K5 Tip Normally Open (N.O.)
14 K5 Ring Normally Open (N.O.)
40 K5 Tip Normally Closed (N.C.)
15 K5 Ring Normally Closed (N.C.)
41 K6 Tip Common
16 K6 Ring Common
42 K6 Tip Normally Open (N.O.)
17 K6 Ring Normally Open (N.O.)
43 K6 Tip Normally Closed (N.C.)
18 K6 Ring Normally Closed (N.C.)
44 K7 Tip Common
19 K7 Ring Common
45 K7 Tip Normally Open (N.O.)
20 K7 Ring Normally Open (N.O.)
46 K7 Tip Normally Closed (N.C.)
21 K7 Ring Normally Closed (N.C.)
47 K8 Tip Common
22 K8 Ring Common
48 K8 Tip Normally Open (N.O.)
23 K8 Ring Normally Open (N.O.)
49 K8 Tip Normally Closed (N.C.)
24 K8 Ring Normally Closed (N.C.)
50 No Connection
25 No Connection
Table 5 - J1 Relay Contact Pinout