QMS 2060 User Manual - page 231

Cable Pinouts

B-7

Technical Specifications

Notes to the Table

n

Direction refers to the direction of signal flow as viewed from the 

printer.

n

Return denotes “twisted-pair return” and is to be connected at 

signal-ground level. When wiring the interface, be sure to use a 

twisted-pair cable for each signal and never fail to complete con-

nection on the return side. To prevent noise effectively, these 

cables should be shielded and connected to the chassis of the 

system unit and printer, respectively.

n

All interface conditions are based on Transistor-Transistor Logic 

(TTL) level. Both the rise and fall times of each signal must be 

less than 0.2 microseconds.

n

Data transfer must be carried out by recognizing the ACKNLG or 

BUSY signal.

n

The cable must have an overall braided shield, Belden 8345 or 

equivalent.

n

Connectors must have shielded housings. The overall shield must 

be bonded to the shielded housings at both ends of the cable.

31

Iprime

In

32

Fault-

Out

33

Reserved

-

34

Reserved

-

35

Reserved

-

36

Selectin

In

Signal Pin No.

Signal Description

Direction