Using the TELEFAST Wiring Accessory
Original instructions
About us
Introduction
The TELEFAST pre-wired system consists of connecting cables and interface sub-bases as shown below: 
1
BMEAHO0412 module 
2
BMXFCA••0 connecting cables 
3
Interface sub-base ABE7CPA21 
4
Shield bar 
5
Clamp
BMXFCA••0 Connecting Cables
The BMXFCA••0 cables are pre-assembled cord set, made up of:
The figure below shows the BMXFCA••0 cables: 
1
BMXFTB2020 Terminal block 
2
Cable shielding 
3
25-pin Sub-D connector 
L
Length according to the part number.
The cable comes in 2 different lengths:
The following table gives the characteristics of the BMXFCA••0 cables:
Characteristic
Value
Cable
Sheath material
PVC
LSZH status
No
Environmental
Operating temperature
-25...70 °C (-13...158 °F)
Connecting Sensors
Actuators may be connected to the ABE7CPA21 wiring accessory as depicted in the Wiring Diagrams topic.
The distribution of analog channels on TELEFAST terminal blocks with the reference ABE7CPA21 are as follows:
TELEFAST terminal block number
BMEAHO0412 pinout
Signal type
TELEFAST terminal block number
BMEAHO0412 pinout
Signal type
1
NC
Ground
Supp 1
NC
Ground
2
NC
STD(1)
Supp 2
NC
Ground
3
NC
STD(1)
Supp 3
NC
Ground
4
NC
STD(2)
Supp 4
NC
Ground
100
1
CH0
200
2
COM0
101
NC
NC
201
NC
Ground
102
7
CH1
202
8
COM1
103
NC
NC
203
NC
Ground
104
11
CH2
204
12
COM2
105
NC
NC
205
NC
Ground
106
17
CH3
206
18
COM3
107
NC
NC
207
NC
Ground
COMx: Common pin for channel x
NC: Not connected
DANGER
HAZARD OF ELECTRIC SHOCK
Confirm that the strap for the ABE7CPA21 is removed.
Failure to follow these instructions will result in death or serious injury.
NOTE: The grounding of cables is facilitated using the ABE7BV•0 wiring accessory.
BMEAHO0412 with 2-Wire or 4-Wire Transmitter, TELEFAST Connector
This example illustrates how to connect the output module to either a 2-wire or a 4-wire transmitter using a TELEFAST wiring accessory and cable. The cable includes a 20-pin terminal block. Field power is supplied to the transmitter only for the 4-wire design. 
1
2-wire or 4-wire transmitter 
2
4-20 mA current loop, with arrows indicating direction of current flow 
3
Field power supply (for 4-wire design only) 
4
Protective ground 
5
Secondary HART master (hand-held)
HART Network Cable Characteristics and Lengths
The HART Communication Foundation has developed documentation describing recommended types and diameters of cable for HART networks. This documentation also includes instructions on how to calculate maximum cable lengths for a HART network.
To obtain a copy of this documentation, visit the HART Communication Foundation website at www.hartcomm.org, and download the document FSK Physical Layer Specification (document number HFD_SPEC-054). HART network cable characteristics and lengths information can be found at section 7.5 of this document.