Encoder Installation
36
025-9567E
0312). The presence of R23 will cause the audio level adjustment range to be -60dBm to -
10dBm (0.75 V peak-peak max). The absence of R23 will cause the audio level adjustment
range to be -60dBm to +7 dBm (5.0 V peak-peak max). If less than -10dBm is needed, then
the lower adjustment range is recommended since otherwise a precise level adjustment via
the four-turn potentiometer will be hard to achieve.
Computer Port Connector Position
If the encoder configuration is equipped with a keypad (901-9019), the computer port
connector may be removed from the front panel and installed on the rear or side panel. To do
this, remove the two Allen head screws and lock nuts that attached the DB9P connector to
the front panel. The screws will require a 1/16" Allen driver. Secure the small cover plate
(415-9088, supplied with encoder) over the hole in the front panel using the previously
removed Allen head screws and nuts. Reroute the connector and ribbon cable through the
square hole provided in the nearby side.
To mount the connector on the side panel, remove the vertical strain relief bar from the
nearby side of the rear panel and use it to clamp the ribbon cable to the side panel. You will
need to supply two #4 screws and nuts to secure the strain relief using two of the four holes
in the side panel. Be sure that the screws holding the strain relief do not interfere with the
optional time clock board when the back panel is closed.
To mount the connector on the back panel, remove the vertical strain relief bar from its
securing studs. Reinstall the strain relief bar over the ribbon cable of the connector. Note that
the cable may interfere with the hinging of the back panel if it is installed on the back.
Instant Call Clear Key Function
Jumper JP3, on the instant call panel driver board (702-9023-001 attached to the front panel),
is used to select the instant call
CLEAR
key function. When JP3 is installed, the Instant Call
Clear key is used to clear all of the panel’s instant call LEDs simultaneously by a single
press. When JP3 is omitted, the Instant Call Clear key is used to clear LEDs selectively.
Using the selective method, the Clear key is pressed once and its LED will illuminate to
indicate that the panel is in the clear mode. A press of any other Instant Call key will now
cause the LED for that key to turn off. Another press of the selective Clear key will cause its
LED to turn off, thus disabling the panel clear mode. The selective method is useful in
removing unwanted instant calls from the call queue while allowing others to remain. If
jumper, JP3, is moved while power is applied, then power must be removed and reapplied in
order to cause the new configuration to take effect.
Summary of Contents for Model 25
Page 1: ...Model 25 Programmable Encoder Product Manual 025 9567E...
Page 2: ......
Page 16: ...Specifications 8 025 9567E...
Page 36: ...Operation 28 025 9567E RELAY TIMING DIAGRAM...
Page 62: ...Auxiliary Panel Installation 54 025 9567E...
Page 72: ...Troubleshooting 64 025 9567E...