
Assembly and Operation Manual
5.3.6 The ACS controller inputs are connected to the contacts Common, PASS A, PASS
B, Ready and Det Out of the XT1.H connector block.
5.3.7 Pin assignments of the CLB connector blocks are given in Fig. 5and on a label
located on the inner surface of turnstile cover(2) with LED indication display (2).
5.4 Input and output control signals and their parameters
5.4.1 The CLB microcontroller processes the incoming commands (i.e. traces the status of
the contacts Unlock A, Stop, Unlock B and Fire Alarm), keeps track of the signals from the
optical arm rotation sensors and from the intrusion detector (contact Detector) and basing
on those signals, generates commands to the control mechanism and to the external
devices – indication on the RC PANEL (Led A, Led Stop and Led B), the signal of hub
turning in the corresponding direction (PASS A and PASS B), the signal of the turnstile
ready for a current command (Ready), the alarm output signal (Alarm) and relays the
signal of the current status of the intrusion detector (Det Out).
5.4.2 The turnstile is operated by input of a low-level signal to the XT1.L connector block
contacts Unlock A, Stop and Unlock B relatively to the GND contact. As the control
element there can be used a normally open relay contact or a circuit with open collector
output at that. At the emergency the turnstile control is carried out by removing of a low-
level signal from the Fire Alarm contact relatively to the GND contact. As the control
element there can be used a normally closed relay contact or a circuit with open collector
output at that (Fig. 7and 8).
Note:
For generating of a high-level signal at all the input contacts (Unlock A, Stop, Unlock
B, Fire Alarm and Detector) 2kOhm resistors connected to the power supply
bus + 5 V are used.
the relay contact as the control element:
minimum switched current............................................................ no more than 2 mA
closed contact resistance (with the resistance
of the connected cable)......................................................... no more than 300 Ohm
the circuit with open-collector output as the control element:
voltage at the closed contact
(low - level signal at the CLB input).............................................. no more than 0.8 V
5.4.3 The relays PASS A (contacts PASS A and Common), PASS B (contacts PASS B
and Common), Ready (contacts Ready and Common), Detector (contacts Det Out and
Common) and Alarm (contacts Alarm 1and Alarm 2) have normally open contacts. The
Common contact, at that, is not connected to the CLB power supply negative terminal. In
the initial (inactive) state, when the power is on, the relay contacts PASS A, PASS B,
Ready and Detector are closed (voltage is supplied to the relay coil) and the Alarm relay
contacts are broken (voltage is not supplied to the relay coil). The CLB relay
operation/release is indicated by lighting up/going down of the red test indicators located
near the corresponding relays (Fig. 5).
The output cascades for PASS A, PASS B, Ready, Det Out and Alarm are the contacts
with the following signal characteristics (Fig. 9):
maximum commutation voltage.................................................................... 42 V DC
maximum switched current ............................................................................. 0.25 A
closed contact resistance .................................................... no more than 0.15 Ohm
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