Instruction Manual

MCN RYB-8 Relay Board Manual CTI Products, Inc.
2
2. Circuit Description
The MCN-RYB-8 board has 8 identical circuits. The following will describe the
first such circuit.
Relay K1 has the following I/O bits associated with it:
J2
Pin
Relay I/O Bit Relay Board
Function
CIB Module
Signal
IOB Mode 1
Signal
21 1 1 Input/Output VOTE 1 Input/Output 1
22 1 2 Output RECEIVE 1 input 1
20 1 3 Input/Output DISABLE 1 Input/Output 9
23 1 4 Output FAIL 1 input 9
I/O bits 1 or 3 can be used as inputs to drive the coil of the relay (see Figure 1).
2.1 Relay Control Inputs E1-E8 “B” Side
Each relay has its own jumper block (E1-E8) to select the input that will drive the
relay coil. Each relay can be controlled from either I/O bit 1 or 3 associated with
it, depending upon the position of the B1 or B3 jumper in jumper blocks E1-E8.
The following table shows the jumper configuration for relay K1:
J2 Pin I/O Bit Jumper
21 1 E1-B1 In (Default)
20 3 E1-B3 In
Only one jumper (E1-B1 or E1-B3) should be installed at a time.
CA-80270-100
A
B
4
3
2
1
DIS
VOTE
RX
FAIL
I/O BIT
DEFAULT POSITION
I/O BIT 1 DRIVES RELAY
ALTERNATE POSITION
I/O BIT 3 DRIVES RELAY
JUMPER POSITIONS FOR
SUB-CATEGORY JUMPERING
B4 PARKING FOR UNUSED JUMPER
B2 PARKING FOR UNUSED JUMPER
Figure 1 Input Jumpering E1-E8
Positions B2 and B4 can be used to "park" unused jumpers.