2 sets Free shipping MDB Adapter (MDB bill acceptor, coin validator to Computer)

Description

Multi-drop bus to RS-232 (MDB2PC) (MDB-RS232)
Working with bill acceptor,coin validator, card reader,cashless defvice, for vending machine,kiosk machine,kiosk information machine
Package including:
Two pcs MDB-RS232 adapter box
(Not including the PC SDK software code, if need more PC SDK software code,please order other link with SDK parts)
(Not including the DC24V Power adapter, that need to be ordered seperately)
If you want to connect the PC to work as the cashless device to your existing vending machine,
please don't order this , please go to order RS232-MDB adapter
Totally working compatible with Upstate Networks Incorporated Mdb converter boxs
Before order and after ordered ,any technical questions,please contact our online
Service Skype: afer-service
This Interface Unit (IU) is designed to convert the MDB Bill Acceptor (BA) and MDB Coin Changer (CC) protocol to RS-232 serial protocol. The IU functions as a slave to a master control system. The master may be any control system that supports RS-232 serial communication, for example a PC.
DESCRIPTION：
This Interface Unit (IU) is designed to convert the MDB Bill Acceptor (BA) and MDB Coin Changer (CC) protocol to RS-232 serial protocol. The IU functions as a slave to a master control system. The master may be any control system that supports RS-232 serial communication, for example a PC.
OPERATION:
The master and slave communication is based on master requests and slave replies. The master sends a status request (or command) to the IU and IU answers by sending its current status. The IU’s typical response to the Master’s request (polling) consists of a header and data bytes. If there is no BA or CC activity, the status is one byte, the header only. When the IU receives data from the BA or CC, it sends a header followed by data bytes in the response to master’s status request. The master must always poll (query) the IU. If the IU does not receive a query from the master in the predefined time slot or IU does not recognize master messages 10 times in row, it will inhibit the BA and CC acceptance. At power up, acceptance of the BA and CC is inhibited.
SPECIFICATION:
Communication format:
Baud rate
Start bit
Data bits
Parity
Stop bit
9600 BPS
1
8
NO
1
Timing Specification:
Inter-byte (max)
Response (max)
Master polling times every
Time IU waits for the Master’s poll before inhibiting acceptance of the BA and CC (max)
1 ms
50 ms
150 – 300 ms
3 second
Hardware Specification.
Power
Cable
Dimensions
Weight
Min 20 VDC
Nominal 24...34 VDC (or 24...30VAC)
Max 39 VDC
Consumes an idle current  < 0.05A
0.5A for 1 sec. when accepting bills
Standard computer serial cable
Standard MDB cable
approx. 100 x 50 x 30 mm
approx. 115 g