2.1 MR-51E connections
TB1-1 IN1 Input 1
TB1-2 IN1
TB1-3 IN2
Input 2
TB1-4
IN2
TB2-1 IN3 Input 3
TB2-2 IN3
TB2-3 IN4
Input 4
TB2-4
IN4
TB3-1 IN5 Input 5
TB3-2 IN5
TB3-3 IN6
Input 6
TB3-4
IN6
TB4-1 VO Auxiliary power output – 12 V DC
TB4-2 GND Auxiliary power output ground
TB4-3 VIN Input power – 12 V DC (from local power supply)
TB4-4
GND Input power ground
TB5-1 NO Relay K1 – Normally open contact
TB5-2 1-C Relay K1 – Common contact
TB5-3 NC Relay K1 – Normally closed contact
TB5-4 NO Relay K2 – Normally open contact
TB5-5 2-C Relay K2 – Common contact
TB5-6
NC Relay K2 – Normally closed contact
TB6-1 NO Relay K3 – Normally open contact
TB6-2 3-C Relay K3 – Common contact
TB6-3 NC Relay K3 – Normally closed contact
TB6-4 NO Relay K4 – Normally open contact
TB6-5 4-C Relay K4 – Common contact
TB6-6
NC Relay K4 – Normally closed contact
TB7-1
GND Reader power ground
TB7-2 TR- 2-Wire RS-485 TR- (B)
1
TB7-3 TR+ 2-Wire RS-485 TR+ (A)
1
TB7-4
RVO 12 V DC Reader power output
PLT-05249, A.1 7 August 2022
Powering
Trusted Identities
HID®Mercury™ MR62e OSDP Reader Interface
Installation and Specifications