Print Date 31/08/11 Page 14 of 22 E2136-00MA-02
*Pins 24 and 25 (chassis ground) connect to internal relay contacts, which open when the Interlock/
connection at pins 21 and 22 is broken and the Amplifier muted. They thus can be used to additionally
mute the drive or other associated equipment via their Interlock inputs.
2.2.3 RF Output Antenna Connector
! CAUTION !
When operating, high RF Voltages are present on this connector. Always ensure when making
connections here, or working on any load connected, that the Amplifier’s mains supply is
either disconnected or switched to ‘off’ at the distribution board (preferably being locked in
that position).
This is a 50
Ω
7/8 in. (E2136-01, 03, 05 and 07) or 7-16 (E2136-02, 04, 06 and 08) coaxial socket
SK05 at the left rear of the unit. Care must be taken to use adequately rated (at maximum ambient
temperature) low loss cable for the lead to the antenna or load
2.2.4 RF Input Connector
! CAUTION !
When operating, high RF Voltages may be present on this connector. Always ensure when
making connections here, that the drive source(s) to the Amplifier are switched off or safely
muted.
This is a 50
Ω
N type coaxial socket SK03 at the centre rear of the unit.
2.2.5 RF Output Monitor Connector
This is a 50
Ω
BNC coaxial socket SK04 at the centre rear of the unit. This provides a sample of the
Amplifier’s forward output power into a 50
Ω
load. This connector is for test purpose only with the test
equipment and lead being disconnected when not in use. Note that this sample does not faithfully
represent harmonic output levels.
2.2.6 REMOTE (COM) Port Connector (/A option only)
This is a 9 Way D plug PL06 on the rear panel. This enables control and monitoring to be performed
using a personal computer with its (RS232) COM port connected to this port. Multi-core screened
cable, not exceeding 30 metres in length, should be used for the interconnecting lead. The lead
terminates in a 9 Way free D socket at the Amplifier end which is wired as follows :-
Pin 1
Not connected
Pin 2
Received Data (to Amplifier)
Pin 3
Transmit Data (from Amplifier)
Pin 4
Not Connected
Pin 5
Ground
Pin 6
Not Connected
Pin 7
Not Connected
Pin 8
Not Connected
Pin 9
Not Connected
Note that the assigned pin numbers and their functions are for a standard 9 pin plug on ‘Data Terminal
Equipment’ (DTE) such as computers. Standard crossover or ‘null modem’ leads must thus be used
for connection to a personal computer or PC. The length of the interconnecting lead may be extended
by use of compatible RS422/485 or fibre-optic line drivers.
