diff --git a/device/epics_ca_private.h b/device/epics_ca_private.h
index 73049ad..09c3cab 100644
--- a/device/epics_ca_private.h
+++ b/device/epics_ca_private.h
@@ -29,7 +29,7 @@
 
 /*----------------------------------------------------------------------------*/
 
-#define CHN_NAME_LENGTH     32      /* length of channel names */
+#define CHN_NAME_LENGTH     256      /* length of channel names */
 #define CHNFLAGS_LENGTH     16      /* chan flags string size */
 
 /*----------------------------------------------------------------------------*/
@@ -71,7 +71,7 @@
        *            checks are possible. To make sure WAIT <equipment> INRANGE in autorun
        *            waits until all operations are completed.
        *
-       *    DD/EPICS Channel name []   max. 32 characters
+       *    DD/EPICS Channel name []   max. 256 characters
        *
        *    DD/Used []          y/n
        *
diff --git a/device/expmag.cxx b/device/expmag.cxx
index cd7b00e..eb55c26 100644
--- a/device/expmag.cxx
+++ b/device/expmag.cxx
@@ -108,7 +108,7 @@ typedef struct {
    int  epics_channels;         /* number of EPICS channels in /Devices/EXPMAG/EPICS/DD*/
    char device[EMNDEVS][16];    /* device names WEDAMP WEUDAC WED .... */
    char type[EMNDEVS][16];      /* device type MAG|PSIBL|GOSSEN|IPS120|EPICSGFA */
-   char server[EMNDEVS][32];    /* "information server" :
+   char server[EMNDEVS][255];    /* "information server" :
                                  *  CHAN|MAG|EPICS|<langpibserver>|<tcp/ip server name>
                                  *  CHAN : use communication handle of CHAN 
                                  *         <Channel number>
@@ -426,7 +426,7 @@ typedef struct _ExpmagRec {
    int channel;                 /* channel number of device */
    char device[16];             /* device names WEDDAC WEDAMP WED .... */
    char type[16];               /* device type MAG|PSIBL|GOSSEN|EPICSGFA */
-   char server[32];             /* "information server" 
+   char server[256];             /* "information server" 
                                  *    CHAN|MAG|EPICS|<langpibserver of GOSSEN>|
                                  *             <tcp/ip name of PSIBL> */
    /*  CHAN: use communication handle of CHAN <Channel number> */